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description Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 PolandPublisher:American Astronomical Society Subhrata Dey; Arti Goyal; Katarzyna Małek; Timothy J. Galvin; Nicholas Seymour; Tanio Díaz Santos; Julia Piotrowska; Vassilis Charmandaris;Abstract We present a detailed analysis of 11 local luminous infrared galaxies from ultraviolet through far-infrared to radio (∼70 MHz to ∼15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs include our new observations at 325 and 610 MHz from the GMRT and the measurements from public archives. Our main results are (1) radio SEDs show turnovers and bends, (2) the synchrotron spectral index of the fitted radio spectra ranges between −0.5 and −1.7, and (3) the infrared luminosity, dust mass, dust temperature, stellar mass, star formation rates (SFRs), and active galactic nuclei (AGN) fraction obtained from CIGALE fall within the range exhibited by galaxies of the same class. The ratio of 60 μm infrared and 1.4 GHz radio luminosity, the 1.4 GHz thermal fraction, and emission measure range between 2.1 and 2.9, 0.1% and 10%, 0.02 and 269.5 × 106 cm−6 pc, respectively. We conclude that the turnovers seen in the radio SEDs are due to free–free absorption; this is supported by the low AGN fraction derived from the CIGALE analysis. The decomposed 1.4 GHz thermal and nonthermal radio luminosities allowed us to compute the SFR using scaling relations. A positive correlation is observed between the SFRIR obtained 10 Myr ago (compared to 100 Myr ago) and 1.4 GHz radio (total and nonthermal) because similar synchrotron lifetimes are expected for typical magnetic field strengths observed in these galaxies (≈50 μG).
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 9 citations 9 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 PolandPublisher:American Astronomical Society Subhrata Dey; Arti Goyal; Katarzyna Małek; Timothy J. Galvin; Nicholas Seymour; Tanio Díaz Santos; Julia Piotrowska; Vassilis Charmandaris;Abstract We present a detailed analysis of 11 local luminous infrared galaxies from ultraviolet through far-infrared to radio (∼70 MHz to ∼15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs include our new observations at 325 and 610 MHz from the GMRT and the measurements from public archives. Our main results are (1) radio SEDs show turnovers and bends, (2) the synchrotron spectral index of the fitted radio spectra ranges between −0.5 and −1.7, and (3) the infrared luminosity, dust mass, dust temperature, stellar mass, star formation rates (SFRs), and active galactic nuclei (AGN) fraction obtained from CIGALE fall within the range exhibited by galaxies of the same class. The ratio of 60 μm infrared and 1.4 GHz radio luminosity, the 1.4 GHz thermal fraction, and emission measure range between 2.1 and 2.9, 0.1% and 10%, 0.02 and 269.5 × 106 cm−6 pc, respectively. We conclude that the turnovers seen in the radio SEDs are due to free–free absorption; this is supported by the low AGN fraction derived from the CIGALE analysis. The decomposed 1.4 GHz thermal and nonthermal radio luminosities allowed us to compute the SFR using scaling relations. A positive correlation is observed between the SFRIR obtained 10 Myr ago (compared to 100 Myr ago) and 1.4 GHz radio (total and nonthermal) because similar synchrotron lifetimes are expected for typical magnetic field strengths observed in these galaxies (≈50 μG).
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 9 citations 9 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type , Journal 2013Embargo end date: 01 Jan 2013 Poland, FrancePublisher:Springer Science and Business Media LLC Katarzyna Małek; Agnieszka Pollo; A. R. Kurek; Matthew A. Malkan; Denis Burgarella; Tsutomu T. Takeuchi; V. Buat; E. Giovannoli; E. Giovannoli;We present the results of the analysis of multiwavelength Spectral Energy Distributions (SEDs) of far-infrared galaxies detected in the AKARI Deep Field-South (ADF--S) Survey. The analysis uses a carefully selected sample of 186 sources detected at the 90 $��$m AKARI band, identified as galaxies with cross-identification in public catalogues. For sources without known spectroscopic redshifts, we estimate photometric redshifts after a test of two independent methods: one based on using mainly the optical -- mid infrared range, and one based on the whole range of ultraviolet -- far infrared data. We observe a vast improvement in the estimation of photometric redshifts when far infrared data are included, compared with an approach based mainly on the optical -- mid infrared range. We discuss the physical properties of our far-infrared-selected sample. We conclude that this sample consists mostly of rich in dust and young stars nearby galaxies, and, furthermore, that almost 25% of these sources are (Ultra)Luminous Infrared Galaxies. Average SEDs normalized at 90 $��$m for normal galaxies (138 sources), LIRGs (30 sources), and ULIRGs (18 galaxies) a the significant shift in the peak wavelength of the dust emission, and an increasing ratio between their bolometric and dust luminosities which varies from 0.39 to 0.73. 8 pages, 7 figures, published in Earth, Planets and Space
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type , Journal 2013Embargo end date: 01 Jan 2013 Poland, FrancePublisher:Springer Science and Business Media LLC Katarzyna Małek; Agnieszka Pollo; A. R. Kurek; Matthew A. Malkan; Denis Burgarella; Tsutomu T. Takeuchi; V. Buat; E. Giovannoli; E. Giovannoli;We present the results of the analysis of multiwavelength Spectral Energy Distributions (SEDs) of far-infrared galaxies detected in the AKARI Deep Field-South (ADF--S) Survey. The analysis uses a carefully selected sample of 186 sources detected at the 90 $��$m AKARI band, identified as galaxies with cross-identification in public catalogues. For sources without known spectroscopic redshifts, we estimate photometric redshifts after a test of two independent methods: one based on using mainly the optical -- mid infrared range, and one based on the whole range of ultraviolet -- far infrared data. We observe a vast improvement in the estimation of photometric redshifts when far infrared data are included, compared with an approach based mainly on the optical -- mid infrared range. We discuss the physical properties of our far-infrared-selected sample. We conclude that this sample consists mostly of rich in dust and young stars nearby galaxies, and, furthermore, that almost 25% of these sources are (Ultra)Luminous Infrared Galaxies. Average SEDs normalized at 90 $��$m for normal galaxies (138 sources), LIRGs (30 sources), and ULIRGs (18 galaxies) a the significant shift in the peak wavelength of the dust emission, and an increasing ratio between their bolometric and dust luminosities which varies from 0.39 to 0.73. 8 pages, 7 figures, published in Earth, Planets and Space
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024Embargo end date: 01 Jan 2024 PolandPublisher:American Astronomical Society Authors: Subhrata Dey; Arti Goyal; Katarzyna Małek; Tanio Díaz-Santos;Abstract We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz). We employ the CIGALE SED fitting code to model the ultraviolet–FIR–radio SED. For the radio-only SED modeling, we use the UltraNest package, leveraging its nested sampling algorithm. Combining the results from our previous study on 11 luminous infrared galaxies (LIRGs), we discuss the global astrophysical properties of a sample of 25 starburst galaxies (z < 0.5). Their radio spectra are frequently characterized by bends and turnovers, with no indication of ULIRGs exhibiting more complicated SEDs than LIRGs despite showing more signs of interactions. Including radio measurements in the CIGALE modeling constrained the dust luminosity and star formation rate (SFR) estimates by more than 1 order of magnitude better than previously reported for starburst galaxies. We show that total and nonthermal radio luminosity at 1.4 and 4.8 GHz frequencies can be good estimators of recent SFRs for all LIRGs and those ULIRGS with an insignificant influence of active galactic nuclei. A weaker but still significant correlation is observed between radio SFRs at 1.4 GHz and old (averaged over 100 Myr) SFRs based on SED modeling, indicative of multiple episodes of starburst activity during their lifetime. The thermal radio luminosity at 4.8 GHz is a better tracer of recent star formation than the thermal luminosity at 1.4 GHz. Statistically, our modeled nonthermal radio spectral indices do not significantly correlate with redshift, stellar mass, SFR, specific SFR, and dust mass.
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024Embargo end date: 01 Jan 2024 PolandPublisher:American Astronomical Society Authors: Subhrata Dey; Arti Goyal; Katarzyna Małek; Tanio Díaz-Santos;Abstract We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz). We employ the CIGALE SED fitting code to model the ultraviolet–FIR–radio SED. For the radio-only SED modeling, we use the UltraNest package, leveraging its nested sampling algorithm. Combining the results from our previous study on 11 luminous infrared galaxies (LIRGs), we discuss the global astrophysical properties of a sample of 25 starburst galaxies (z < 0.5). Their radio spectra are frequently characterized by bends and turnovers, with no indication of ULIRGs exhibiting more complicated SEDs than LIRGs despite showing more signs of interactions. Including radio measurements in the CIGALE modeling constrained the dust luminosity and star formation rate (SFR) estimates by more than 1 order of magnitude better than previously reported for starburst galaxies. We show that total and nonthermal radio luminosity at 1.4 and 4.8 GHz frequencies can be good estimators of recent SFRs for all LIRGs and those ULIRGS with an insignificant influence of active galactic nuclei. A weaker but still significant correlation is observed between radio SFRs at 1.4 GHz and old (averaged over 100 Myr) SFRs based on SED modeling, indicative of multiple episodes of starburst activity during their lifetime. The thermal radio luminosity at 4.8 GHz is a better tracer of recent star formation than the thermal luminosity at 1.4 GHz. Statistically, our modeled nonthermal radio spectral indices do not significantly correlate with redshift, stellar mass, SFR, specific SFR, and dust mass.
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2008 Australia, Italy, Italy, Netherlands, Australia, United Kingdom, United Kingdom, Australia, United Kingdom, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | EURO_GRANOTEC| EURO_GRANOTS. Golenetskii; Fabrizio Fiore; David N. Burrows; Martin Jelínek; Krzysztof Nawrocki; L. Vetere; Javier Gorosabel; A. J. van der Horst; P. A. Curran; Iain A. Steele; S. B. Pandey; A. J. Castro-Tirado; A. Melandri; Peter Mészáros; A. Cucchiara; Raffaella Margutti; E. P. Mazets; Andrew S. Fruchter; R. L. C. Starling; P. D'Avanzo; G. Greco; Nial R. Tanvir; Ralph A. M. J. Wijers; J. Cummings; Stefan Immler; Gino Tosti; Tsvi Piran; Andreja Gomboc; M. T. Page; J. M. Winters; Klaas Wiersema; Enrico Ramirez-Ruiz; Grzegorz Kasprowicz; Bing Zhang; M. Della Valle; R. Aptekar; V. La Parola; A. P. Beardmore; Patricia Schady; C. Guidorzi; C. Guidorzi; Robert J. Smith; Neil Gehrels; Guido Chincarini; Guido Chincarini; Corrado Bartolini; V. Pal'Shin; K. L. Page; G. M. Beskin; Lech Mankiewicz; Marcin Sokolowski; Chryssa Kouveliotou; Stefano Covino; F. M. Zerbi; Jonathan Granot; Atish Kamble; D. B. Fox; P. T. O'Brien; A. D. Falcone; Judith Racusin; Zsolt Paragi; Scott Barthelmy; A. Moretti; S. Bondar; S. V. Karpov; Grzegorz Wrochna; Dino Fugazza; Sergio Campana; P. A. Evans; P. W. A. Roming; E. Molinari; Richard G. Strom; Richard G. Strom; Valerio D'Elia; S. R. Oates; Xue-Feng Wu; Xue-Feng Wu; Katarzyna Małek; P. Oleynik; Stephen T. Holland; Stephen T. Holland; Adalberto Piccioni; J. P. Osborne; D. D. Frederiks; V. Mangano; M. Cwiok; C. Pagani; M. Perri; Malcolm N. Bremer; M. A. Garrett; M. A. Garrett; M. A. Garrett; Lech Wiktor Piotrowski; Aleksander Filip Zarnecki; Adriano Guarnieri; M. Ulanov; W. Dominik; A. de Ugarte Postigo; Andrew J. Levan; Vincenzo Testa;doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of massive stars. Previous early optical observations of even the most exceptional GRBs (990123 and 030329) lacked both the temporal resolution to probe the optical flash in detail and the accuracy needed to trace the transition from the prompt emission within the outflow to external shocks caused by interaction with the progenitor environment. Here we report observations of the extraordinarily bright prompt optical and gamma-ray emission of GRB 080319B that provide diagnostics within seconds of its formation, followed by broadband observations of the afterglow decay that continued for weeks. We show that the prompt emission stems from a single physical region, implying an extremely relativistic outflow that propagates within the narrow inner core of a two-component jet.
Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 439 citations 439 popularity Top 1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2008 Australia, Italy, Italy, Netherlands, Australia, United Kingdom, United Kingdom, Australia, United Kingdom, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | EURO_GRANOTEC| EURO_GRANOTS. Golenetskii; Fabrizio Fiore; David N. Burrows; Martin Jelínek; Krzysztof Nawrocki; L. Vetere; Javier Gorosabel; A. J. van der Horst; P. A. Curran; Iain A. Steele; S. B. Pandey; A. J. Castro-Tirado; A. Melandri; Peter Mészáros; A. Cucchiara; Raffaella Margutti; E. P. Mazets; Andrew S. Fruchter; R. L. C. Starling; P. D'Avanzo; G. Greco; Nial R. Tanvir; Ralph A. M. J. Wijers; J. Cummings; Stefan Immler; Gino Tosti; Tsvi Piran; Andreja Gomboc; M. T. Page; J. M. Winters; Klaas Wiersema; Enrico Ramirez-Ruiz; Grzegorz Kasprowicz; Bing Zhang; M. Della Valle; R. Aptekar; V. La Parola; A. P. Beardmore; Patricia Schady; C. Guidorzi; C. Guidorzi; Robert J. Smith; Neil Gehrels; Guido Chincarini; Guido Chincarini; Corrado Bartolini; V. Pal'Shin; K. L. Page; G. M. Beskin; Lech Mankiewicz; Marcin Sokolowski; Chryssa Kouveliotou; Stefano Covino; F. M. Zerbi; Jonathan Granot; Atish Kamble; D. B. Fox; P. T. O'Brien; A. D. Falcone; Judith Racusin; Zsolt Paragi; Scott Barthelmy; A. Moretti; S. Bondar; S. V. Karpov; Grzegorz Wrochna; Dino Fugazza; Sergio Campana; P. A. Evans; P. W. A. Roming; E. Molinari; Richard G. Strom; Richard G. Strom; Valerio D'Elia; S. R. Oates; Xue-Feng Wu; Xue-Feng Wu; Katarzyna Małek; P. Oleynik; Stephen T. Holland; Stephen T. Holland; Adalberto Piccioni; J. P. Osborne; D. D. Frederiks; V. Mangano; M. Cwiok; C. Pagani; M. Perri; Malcolm N. Bremer; M. A. Garrett; M. A. Garrett; M. A. Garrett; Lech Wiktor Piotrowski; Aleksander Filip Zarnecki; Adriano Guarnieri; M. Ulanov; W. Dominik; A. de Ugarte Postigo; Andrew J. Levan; Vincenzo Testa;doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of massive stars. Previous early optical observations of even the most exceptional GRBs (990123 and 030329) lacked both the temporal resolution to probe the optical flash in detail and the accuracy needed to trace the transition from the prompt emission within the outflow to external shocks caused by interaction with the progenitor environment. Here we report observations of the extraordinarily bright prompt optical and gamma-ray emission of GRB 080319B that provide diagnostics within seconds of its formation, followed by broadband observations of the afterglow decay that continued for weeks. We show that the prompt emission stems from a single physical region, implying an extremely relativistic outflow that propagates within the narrow inner core of a two-component jet.
Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 439 citations 439 popularity Top 1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 Belgium, France, SpainPublisher:American Astronomical Society Funded by:MESTD | Ministry of Education, Sc..., NSF | Collaborative Research: A..., SFRS | BOWIEMESTD| Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200002 (Astronomical Opservatory, Belgrade) ,NSF| Collaborative Research: A Medium-Band K-band Survey with Gemini to Identify the First Quenching Galaxies and Extreme Episodes of Galaxy Formation ,SFRS| BOWIEGuang 光 Yang 杨; Médéric Boquien; W. N. Brandt; Véronique Buat; Denis Burgarella; Laure Ciesla; Bret D. Lehmer; Katarzyna Małek; George Mountrichas; Casey Papovich; Estelle Pons; Marko Stalevski; Patrice Theulé; Shifu Zhu;Abstract Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is a critical but challenging task for extragalactic studies. The Code Investigating GALaxy Emission (cigale) is an efficient python code for spectral energy distribution (SED) fitting of galaxies and active galactic nuclei (AGNs). Recently, a major extension of cigale (named x-cigale) has been developed to account for AGN/galaxy X-ray emission and improve AGN modeling at UV-to-IR wavelengths. Here, we apply x-cigale to different samples, including Cosmological Evolution Survey (COSMOS) spectroscopic type 2 AGNs, Chandra Deep Field-South X-ray detected normal galaxies, Sloan Digital Sky Survey quasars, and COSMOS radio objects. From these tests, we identify several weaknesses of x-cigale and improve the code accordingly. These improvements are mainly related to AGN intrinsic X-ray anisotropy, X-ray binary emission, AGN accretion-disk SED shape, and AGN radio emission. These updates improve the fit quality and allow for new interpretation of the results, based on which we discuss physical implications. For example, we find that AGN intrinsic X-ray anisotropy is moderate, and can be modeled as L X ( θ ) ∝ 1 + cos θ , where θ is the viewing angle measured from the AGN axis. We merge the new code into the major branch of cigale, and publicly release this new version as cigale v2022.0 on https://cigale.lam.fr.
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 123 citations 123 popularity Top 1% influence Top 10% impulse Top 0.1% Powered by BIP!
visibility 47visibility views 47 download downloads 60 Powered bymore_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 Belgium, France, SpainPublisher:American Astronomical Society Funded by:MESTD | Ministry of Education, Sc..., NSF | Collaborative Research: A..., SFRS | BOWIEMESTD| Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200002 (Astronomical Opservatory, Belgrade) ,NSF| Collaborative Research: A Medium-Band K-band Survey with Gemini to Identify the First Quenching Galaxies and Extreme Episodes of Galaxy Formation ,SFRS| BOWIEGuang 光 Yang 杨; Médéric Boquien; W. N. Brandt; Véronique Buat; Denis Burgarella; Laure Ciesla; Bret D. Lehmer; Katarzyna Małek; George Mountrichas; Casey Papovich; Estelle Pons; Marko Stalevski; Patrice Theulé; Shifu Zhu;Abstract Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is a critical but challenging task for extragalactic studies. The Code Investigating GALaxy Emission (cigale) is an efficient python code for spectral energy distribution (SED) fitting of galaxies and active galactic nuclei (AGNs). Recently, a major extension of cigale (named x-cigale) has been developed to account for AGN/galaxy X-ray emission and improve AGN modeling at UV-to-IR wavelengths. Here, we apply x-cigale to different samples, including Cosmological Evolution Survey (COSMOS) spectroscopic type 2 AGNs, Chandra Deep Field-South X-ray detected normal galaxies, Sloan Digital Sky Survey quasars, and COSMOS radio objects. From these tests, we identify several weaknesses of x-cigale and improve the code accordingly. These improvements are mainly related to AGN intrinsic X-ray anisotropy, X-ray binary emission, AGN accretion-disk SED shape, and AGN radio emission. These updates improve the fit quality and allow for new interpretation of the results, based on which we discuss physical implications. For example, we find that AGN intrinsic X-ray anisotropy is moderate, and can be modeled as L X ( θ ) ∝ 1 + cos θ , where θ is the viewing angle measured from the AGN axis. We merge the new code into the major branch of cigale, and publicly release this new version as cigale v2022.0 on https://cigale.lam.fr.
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 123 citations 123 popularity Top 1% influence Top 10% impulse Top 0.1% Powered by BIP!
visibility 47visibility views 47 download downloads 60 Powered bymore_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 PolandPublisher:American Astronomical Society Subhrata Dey; Arti Goyal; Katarzyna Małek; Timothy J. Galvin; Nicholas Seymour; Tanio Díaz Santos; Julia Piotrowska; Vassilis Charmandaris;Abstract We present a detailed analysis of 11 local luminous infrared galaxies from ultraviolet through far-infrared to radio (∼70 MHz to ∼15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs include our new observations at 325 and 610 MHz from the GMRT and the measurements from public archives. Our main results are (1) radio SEDs show turnovers and bends, (2) the synchrotron spectral index of the fitted radio spectra ranges between −0.5 and −1.7, and (3) the infrared luminosity, dust mass, dust temperature, stellar mass, star formation rates (SFRs), and active galactic nuclei (AGN) fraction obtained from CIGALE fall within the range exhibited by galaxies of the same class. The ratio of 60 μm infrared and 1.4 GHz radio luminosity, the 1.4 GHz thermal fraction, and emission measure range between 2.1 and 2.9, 0.1% and 10%, 0.02 and 269.5 × 106 cm−6 pc, respectively. We conclude that the turnovers seen in the radio SEDs are due to free–free absorption; this is supported by the low AGN fraction derived from the CIGALE analysis. The decomposed 1.4 GHz thermal and nonthermal radio luminosities allowed us to compute the SFR using scaling relations. A positive correlation is observed between the SFRIR obtained 10 Myr ago (compared to 100 Myr ago) and 1.4 GHz radio (total and nonthermal) because similar synchrotron lifetimes are expected for typical magnetic field strengths observed in these galaxies (≈50 μG).
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 9 citations 9 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 PolandPublisher:American Astronomical Society Subhrata Dey; Arti Goyal; Katarzyna Małek; Timothy J. Galvin; Nicholas Seymour; Tanio Díaz Santos; Julia Piotrowska; Vassilis Charmandaris;Abstract We present a detailed analysis of 11 local luminous infrared galaxies from ultraviolet through far-infrared to radio (∼70 MHz to ∼15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs include our new observations at 325 and 610 MHz from the GMRT and the measurements from public archives. Our main results are (1) radio SEDs show turnovers and bends, (2) the synchrotron spectral index of the fitted radio spectra ranges between −0.5 and −1.7, and (3) the infrared luminosity, dust mass, dust temperature, stellar mass, star formation rates (SFRs), and active galactic nuclei (AGN) fraction obtained from CIGALE fall within the range exhibited by galaxies of the same class. The ratio of 60 μm infrared and 1.4 GHz radio luminosity, the 1.4 GHz thermal fraction, and emission measure range between 2.1 and 2.9, 0.1% and 10%, 0.02 and 269.5 × 106 cm−6 pc, respectively. We conclude that the turnovers seen in the radio SEDs are due to free–free absorption; this is supported by the low AGN fraction derived from the CIGALE analysis. The decomposed 1.4 GHz thermal and nonthermal radio luminosities allowed us to compute the SFR using scaling relations. A positive correlation is observed between the SFRIR obtained 10 Myr ago (compared to 100 Myr ago) and 1.4 GHz radio (total and nonthermal) because similar synchrotron lifetimes are expected for typical magnetic field strengths observed in these galaxies (≈50 μG).
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 9 citations 9 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac82f2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type , Journal 2013Embargo end date: 01 Jan 2013 Poland, FrancePublisher:Springer Science and Business Media LLC Katarzyna Małek; Agnieszka Pollo; A. R. Kurek; Matthew A. Malkan; Denis Burgarella; Tsutomu T. Takeuchi; V. Buat; E. Giovannoli; E. Giovannoli;We present the results of the analysis of multiwavelength Spectral Energy Distributions (SEDs) of far-infrared galaxies detected in the AKARI Deep Field-South (ADF--S) Survey. The analysis uses a carefully selected sample of 186 sources detected at the 90 $��$m AKARI band, identified as galaxies with cross-identification in public catalogues. For sources without known spectroscopic redshifts, we estimate photometric redshifts after a test of two independent methods: one based on using mainly the optical -- mid infrared range, and one based on the whole range of ultraviolet -- far infrared data. We observe a vast improvement in the estimation of photometric redshifts when far infrared data are included, compared with an approach based mainly on the optical -- mid infrared range. We discuss the physical properties of our far-infrared-selected sample. We conclude that this sample consists mostly of rich in dust and young stars nearby galaxies, and, furthermore, that almost 25% of these sources are (Ultra)Luminous Infrared Galaxies. Average SEDs normalized at 90 $��$m for normal galaxies (138 sources), LIRGs (30 sources), and ULIRGs (18 galaxies) a the significant shift in the peak wavelength of the dust emission, and an increasing ratio between their bolometric and dust luminosities which varies from 0.39 to 0.73. 8 pages, 7 figures, published in Earth, Planets and Space
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint , Other literature type , Journal 2013Embargo end date: 01 Jan 2013 Poland, FrancePublisher:Springer Science and Business Media LLC Katarzyna Małek; Agnieszka Pollo; A. R. Kurek; Matthew A. Malkan; Denis Burgarella; Tsutomu T. Takeuchi; V. Buat; E. Giovannoli; E. Giovannoli;We present the results of the analysis of multiwavelength Spectral Energy Distributions (SEDs) of far-infrared galaxies detected in the AKARI Deep Field-South (ADF--S) Survey. The analysis uses a carefully selected sample of 186 sources detected at the 90 $��$m AKARI band, identified as galaxies with cross-identification in public catalogues. For sources without known spectroscopic redshifts, we estimate photometric redshifts after a test of two independent methods: one based on using mainly the optical -- mid infrared range, and one based on the whole range of ultraviolet -- far infrared data. We observe a vast improvement in the estimation of photometric redshifts when far infrared data are included, compared with an approach based mainly on the optical -- mid infrared range. We discuss the physical properties of our far-infrared-selected sample. We conclude that this sample consists mostly of rich in dust and young stars nearby galaxies, and, furthermore, that almost 25% of these sources are (Ultra)Luminous Infrared Galaxies. Average SEDs normalized at 90 $��$m for normal galaxies (138 sources), LIRGs (30 sources), and ULIRGs (18 galaxies) a the significant shift in the peak wavelength of the dust emission, and an increasing ratio between their bolometric and dust luminosities which varies from 0.39 to 0.73. 8 pages, 7 figures, published in Earth, Planets and Space
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5047/eps.2013.06.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2013License: CC BY NC NDFull-Text: https://hal.science/hal-01439553Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2013Data sources: INRIA a CCSD electronic archive serverhttps://dx.doi.org/10.48550/ar...Article . 2013License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024Embargo end date: 01 Jan 2024 PolandPublisher:American Astronomical Society Authors: Subhrata Dey; Arti Goyal; Katarzyna Małek; Tanio Díaz-Santos;Abstract We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz). We employ the CIGALE SED fitting code to model the ultraviolet–FIR–radio SED. For the radio-only SED modeling, we use the UltraNest package, leveraging its nested sampling algorithm. Combining the results from our previous study on 11 luminous infrared galaxies (LIRGs), we discuss the global astrophysical properties of a sample of 25 starburst galaxies (z < 0.5). Their radio spectra are frequently characterized by bends and turnovers, with no indication of ULIRGs exhibiting more complicated SEDs than LIRGs despite showing more signs of interactions. Including radio measurements in the CIGALE modeling constrained the dust luminosity and star formation rate (SFR) estimates by more than 1 order of magnitude better than previously reported for starburst galaxies. We show that total and nonthermal radio luminosity at 1.4 and 4.8 GHz frequencies can be good estimators of recent SFRs for all LIRGs and those ULIRGS with an insignificant influence of active galactic nuclei. A weaker but still significant correlation is observed between radio SFRs at 1.4 GHz and old (averaged over 100 Myr) SFRs based on SED modeling, indicative of multiple episodes of starburst activity during their lifetime. The thermal radio luminosity at 4.8 GHz is a better tracer of recent star formation than the thermal luminosity at 1.4 GHz. Statistically, our modeled nonthermal radio spectral indices do not significantly correlate with redshift, stellar mass, SFR, specific SFR, and dust mass.
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2024Embargo end date: 01 Jan 2024 PolandPublisher:American Astronomical Society Authors: Subhrata Dey; Arti Goyal; Katarzyna Małek; Tanio Díaz-Santos;Abstract We present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz). We employ the CIGALE SED fitting code to model the ultraviolet–FIR–radio SED. For the radio-only SED modeling, we use the UltraNest package, leveraging its nested sampling algorithm. Combining the results from our previous study on 11 luminous infrared galaxies (LIRGs), we discuss the global astrophysical properties of a sample of 25 starburst galaxies (z < 0.5). Their radio spectra are frequently characterized by bends and turnovers, with no indication of ULIRGs exhibiting more complicated SEDs than LIRGs despite showing more signs of interactions. Including radio measurements in the CIGALE modeling constrained the dust luminosity and star formation rate (SFR) estimates by more than 1 order of magnitude better than previously reported for starburst galaxies. We show that total and nonthermal radio luminosity at 1.4 and 4.8 GHz frequencies can be good estimators of recent SFRs for all LIRGs and those ULIRGS with an insignificant influence of active galactic nuclei. A weaker but still significant correlation is observed between radio SFRs at 1.4 GHz and old (averaged over 100 Myr) SFRs based on SED modeling, indicative of multiple episodes of starburst activity during their lifetime. The thermal radio luminosity at 4.8 GHz is a better tracer of recent star formation than the thermal luminosity at 1.4 GHz. Statistically, our modeled nonthermal radio spectral indices do not significantly correlate with redshift, stellar mass, SFR, specific SFR, and dust mass.
The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
more_vert The Astrophysical Jo... arrow_drop_down https://dx.doi.org/10.48550/ar...Article . 2024License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ad2c93&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2008 Australia, Italy, Italy, Netherlands, Australia, United Kingdom, United Kingdom, Australia, United Kingdom, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | EURO_GRANOTEC| EURO_GRANOTS. Golenetskii; Fabrizio Fiore; David N. Burrows; Martin Jelínek; Krzysztof Nawrocki; L. Vetere; Javier Gorosabel; A. J. van der Horst; P. A. Curran; Iain A. Steele; S. B. Pandey; A. J. Castro-Tirado; A. Melandri; Peter Mészáros; A. Cucchiara; Raffaella Margutti; E. P. Mazets; Andrew S. Fruchter; R. L. C. Starling; P. D'Avanzo; G. Greco; Nial R. Tanvir; Ralph A. M. J. Wijers; J. Cummings; Stefan Immler; Gino Tosti; Tsvi Piran; Andreja Gomboc; M. T. Page; J. M. Winters; Klaas Wiersema; Enrico Ramirez-Ruiz; Grzegorz Kasprowicz; Bing Zhang; M. Della Valle; R. Aptekar; V. La Parola; A. P. Beardmore; Patricia Schady; C. Guidorzi; C. Guidorzi; Robert J. Smith; Neil Gehrels; Guido Chincarini; Guido Chincarini; Corrado Bartolini; V. Pal'Shin; K. L. Page; G. M. Beskin; Lech Mankiewicz; Marcin Sokolowski; Chryssa Kouveliotou; Stefano Covino; F. M. Zerbi; Jonathan Granot; Atish Kamble; D. B. Fox; P. T. O'Brien; A. D. Falcone; Judith Racusin; Zsolt Paragi; Scott Barthelmy; A. Moretti; S. Bondar; S. V. Karpov; Grzegorz Wrochna; Dino Fugazza; Sergio Campana; P. A. Evans; P. W. A. Roming; E. Molinari; Richard G. Strom; Richard G. Strom; Valerio D'Elia; S. R. Oates; Xue-Feng Wu; Xue-Feng Wu; Katarzyna Małek; P. Oleynik; Stephen T. Holland; Stephen T. Holland; Adalberto Piccioni; J. P. Osborne; D. D. Frederiks; V. Mangano; M. Cwiok; C. Pagani; M. Perri; Malcolm N. Bremer; M. A. Garrett; M. A. Garrett; M. A. Garrett; Lech Wiktor Piotrowski; Aleksander Filip Zarnecki; Adriano Guarnieri; M. Ulanov; W. Dominik; A. de Ugarte Postigo; Andrew J. Levan; Vincenzo Testa;doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of massive stars. Previous early optical observations of even the most exceptional GRBs (990123 and 030329) lacked both the temporal resolution to probe the optical flash in detail and the accuracy needed to trace the transition from the prompt emission within the outflow to external shocks caused by interaction with the progenitor environment. Here we report observations of the extraordinarily bright prompt optical and gamma-ray emission of GRB 080319B that provide diagnostics within seconds of its formation, followed by broadband observations of the afterglow decay that continued for weeks. We show that the prompt emission stems from a single physical region, implying an extremely relativistic outflow that propagates within the narrow inner core of a two-component jet.
Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 439 citations 439 popularity Top 1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2008 Australia, Italy, Italy, Netherlands, Australia, United Kingdom, United Kingdom, Australia, United Kingdom, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | EURO_GRANOTEC| EURO_GRANOTS. Golenetskii; Fabrizio Fiore; David N. Burrows; Martin Jelínek; Krzysztof Nawrocki; L. Vetere; Javier Gorosabel; A. J. van der Horst; P. A. Curran; Iain A. Steele; S. B. Pandey; A. J. Castro-Tirado; A. Melandri; Peter Mészáros; A. Cucchiara; Raffaella Margutti; E. P. Mazets; Andrew S. Fruchter; R. L. C. Starling; P. D'Avanzo; G. Greco; Nial R. Tanvir; Ralph A. M. J. Wijers; J. Cummings; Stefan Immler; Gino Tosti; Tsvi Piran; Andreja Gomboc; M. T. Page; J. M. Winters; Klaas Wiersema; Enrico Ramirez-Ruiz; Grzegorz Kasprowicz; Bing Zhang; M. Della Valle; R. Aptekar; V. La Parola; A. P. Beardmore; Patricia Schady; C. Guidorzi; C. Guidorzi; Robert J. Smith; Neil Gehrels; Guido Chincarini; Guido Chincarini; Corrado Bartolini; V. Pal'Shin; K. L. Page; G. M. Beskin; Lech Mankiewicz; Marcin Sokolowski; Chryssa Kouveliotou; Stefano Covino; F. M. Zerbi; Jonathan Granot; Atish Kamble; D. B. Fox; P. T. O'Brien; A. D. Falcone; Judith Racusin; Zsolt Paragi; Scott Barthelmy; A. Moretti; S. Bondar; S. V. Karpov; Grzegorz Wrochna; Dino Fugazza; Sergio Campana; P. A. Evans; P. W. A. Roming; E. Molinari; Richard G. Strom; Richard G. Strom; Valerio D'Elia; S. R. Oates; Xue-Feng Wu; Xue-Feng Wu; Katarzyna Małek; P. Oleynik; Stephen T. Holland; Stephen T. Holland; Adalberto Piccioni; J. P. Osborne; D. D. Frederiks; V. Mangano; M. Cwiok; C. Pagani; M. Perri; Malcolm N. Bremer; M. A. Garrett; M. A. Garrett; M. A. Garrett; Lech Wiktor Piotrowski; Aleksander Filip Zarnecki; Adriano Guarnieri; M. Ulanov; W. Dominik; A. de Ugarte Postigo; Andrew J. Levan; Vincenzo Testa;doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
doi: 10.1038/nature07270
pmid: 18784718
handle: 11245/1.301930 , 11392/532060 , 11585/70287 , 2381/25356 , 2381/42419 , 1959.3/47559 , 20.500.11937/15775
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of massive stars. Previous early optical observations of even the most exceptional GRBs (990123 and 030329) lacked both the temporal resolution to probe the optical flash in detail and the accuracy needed to trace the transition from the prompt emission within the outflow to external shocks caused by interaction with the progenitor environment. Here we report observations of the extraordinarily bright prompt optical and gamma-ray emission of GRB 080319B that provide diagnostics within seconds of its formation, followed by broadband observations of the afterglow decay that continued for weeks. We show that the prompt emission stems from a single physical region, implying an extremely relativistic outflow that propagates within the narrow inner core of a two-component jet.
Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 439 citations 439 popularity Top 1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert Nature arrow_drop_down Universiteit van Amsterdam: Digital Academic Repository (UvA DARE)Article . 2008Data sources: Bielefeld Academic Search Engine (BASE)http://dx.doi.org/10.1038/natu...Other literature typeData sources: European Union Open Data PortalSwinburne University of Technology: Swinburne Research BankArticle . 2008Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/nature07270&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 Belgium, France, SpainPublisher:American Astronomical Society Funded by:MESTD | Ministry of Education, Sc..., NSF | Collaborative Research: A..., SFRS | BOWIEMESTD| Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200002 (Astronomical Opservatory, Belgrade) ,NSF| Collaborative Research: A Medium-Band K-band Survey with Gemini to Identify the First Quenching Galaxies and Extreme Episodes of Galaxy Formation ,SFRS| BOWIEGuang 光 Yang 杨; Médéric Boquien; W. N. Brandt; Véronique Buat; Denis Burgarella; Laure Ciesla; Bret D. Lehmer; Katarzyna Małek; George Mountrichas; Casey Papovich; Estelle Pons; Marko Stalevski; Patrice Theulé; Shifu Zhu;Abstract Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is a critical but challenging task for extragalactic studies. The Code Investigating GALaxy Emission (cigale) is an efficient python code for spectral energy distribution (SED) fitting of galaxies and active galactic nuclei (AGNs). Recently, a major extension of cigale (named x-cigale) has been developed to account for AGN/galaxy X-ray emission and improve AGN modeling at UV-to-IR wavelengths. Here, we apply x-cigale to different samples, including Cosmological Evolution Survey (COSMOS) spectroscopic type 2 AGNs, Chandra Deep Field-South X-ray detected normal galaxies, Sloan Digital Sky Survey quasars, and COSMOS radio objects. From these tests, we identify several weaknesses of x-cigale and improve the code accordingly. These improvements are mainly related to AGN intrinsic X-ray anisotropy, X-ray binary emission, AGN accretion-disk SED shape, and AGN radio emission. These updates improve the fit quality and allow for new interpretation of the results, based on which we discuss physical implications. For example, we find that AGN intrinsic X-ray anisotropy is moderate, and can be modeled as L X ( θ ) ∝ 1 + cos θ , where θ is the viewing angle measured from the AGN axis. We merge the new code into the major branch of cigale, and publicly release this new version as cigale v2022.0 on https://cigale.lam.fr.
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 123 citations 123 popularity Top 1% influence Top 10% impulse Top 0.1% Powered by BIP!
visibility 47visibility views 47 download downloads 60 Powered bymore_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2022Embargo end date: 01 Jan 2022 Belgium, France, SpainPublisher:American Astronomical Society Funded by:MESTD | Ministry of Education, Sc..., NSF | Collaborative Research: A..., SFRS | BOWIEMESTD| Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200002 (Astronomical Opservatory, Belgrade) ,NSF| Collaborative Research: A Medium-Band K-band Survey with Gemini to Identify the First Quenching Galaxies and Extreme Episodes of Galaxy Formation ,SFRS| BOWIEGuang 光 Yang 杨; Médéric Boquien; W. N. Brandt; Véronique Buat; Denis Burgarella; Laure Ciesla; Bret D. Lehmer; Katarzyna Małek; George Mountrichas; Casey Papovich; Estelle Pons; Marko Stalevski; Patrice Theulé; Shifu Zhu;Abstract Modern and future surveys effectively provide a panchromatic view for large numbers of extragalactic objects. Consistently modeling these multiwavelength survey data is a critical but challenging task for extragalactic studies. The Code Investigating GALaxy Emission (cigale) is an efficient python code for spectral energy distribution (SED) fitting of galaxies and active galactic nuclei (AGNs). Recently, a major extension of cigale (named x-cigale) has been developed to account for AGN/galaxy X-ray emission and improve AGN modeling at UV-to-IR wavelengths. Here, we apply x-cigale to different samples, including Cosmological Evolution Survey (COSMOS) spectroscopic type 2 AGNs, Chandra Deep Field-South X-ray detected normal galaxies, Sloan Digital Sky Survey quasars, and COSMOS radio objects. From these tests, we identify several weaknesses of x-cigale and improve the code accordingly. These improvements are mainly related to AGN intrinsic X-ray anisotropy, X-ray binary emission, AGN accretion-disk SED shape, and AGN radio emission. These updates improve the fit quality and allow for new interpretation of the results, based on which we discuss physical implications. For example, we find that AGN intrinsic X-ray anisotropy is moderate, and can be modeled as L X ( θ ) ∝ 1 + cos θ , where θ is the viewing angle measured from the AGN axis. We merge the new code into the major branch of cigale, and publicly release this new version as cigale v2022.0 on https://cigale.lam.fr.
Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/1538-4357/ac4971&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 123 citations 123 popularity Top 1% influence Top 10% impulse Top 0.1% Powered by BIP!
visibility 47visibility views 47 download downloads 60 Powered bymore_vert Institut national de... arrow_drop_down Institut national des sciences de l'Univers: HAL-INSUArticle . 2022Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2022 . Peer-reviewedData sources: Recolector de Ciencia Abierta, RECOLECTAhttps://dx.doi.org/10.48550/ar...Article . 2022License: arXiv Non-Exclusive DistributionData sources: DataciteGhent University Academic BibliographyArticle . 2022Data sources: Ghent University Academic Bibliographyadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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