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description Publicationkeyboard_double_arrow_right Article , Preprint , Journal 2006Embargo end date: 01 Jan 2006 France, United States, United States, United States, United States, United KingdomPublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCHowell, D.A.; Sullivan, M.; Nugent, P.E.; Ellis, R.S.; Conley, A.J.; Le Borgne, Damien; Carlberg, R.G.; Guy, J.; Balam, D.; Basa, S.; Fouchez, D.; Hook, I.M.; Hsiao, E.Y.; Neill, J.D.; Pain, R.; Perrett, K.M.; Pritchet, C.J.;The acceleration of the expansion of the universe, and the need for Dark Energy, were inferred from the observations of Type Ia supernovae (SNe Ia). There is consensus that SNe Ia are thermonuclear explosions that destroy carbon-oxygen white dwarf stars that accrete matter from a companion star, although the nature of this companion remains uncertain. SNe Ia are thought to be reliable distance indicators because they have a standard amount of fuel and a uniform trigger -- they are predicted to explode when the mass of the white dwarf nears the Chandrasekhar mass -- 1.4 solar masses. Here we show that the high redshift supernova SNLS-03D3bb has an exceptionally high luminosity and low kinetic energy that both imply a super-Chandrasekhar mass progenitor. Super-Chandrasekhar mass SNe Ia should preferentially occur in a young stellar population, so this may provide an explanation for the observed trend that overluminous SNe Ia only occur in young environments. Since this supernova does not obey the relations that allow them to be calibrated as standard candles, and since no counterparts have been found at low redshift, future cosmology studies will have to consider contamination from such events. 9 pages, 4 figures. To appear in Nature Sept. 21. Accompanying News & Views in same issue. Supplementary information available at www.nature.com/nature
Caltech Authors arrow_drop_down HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)Article . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)Caltech Authors (California Institute of Technology)Article . 2006Full-Text: https://doi.org/10.1038/nature05103Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2006Data sources: INRIA a CCSD electronic archive servereScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of Californiahttps://dx.doi.org/10.48550/ar...Article . 2006License: arXiv Non-Exclusive DistributionData sources: DataciteeScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of CaliforniaUniversity of North Texas: UNT Digital LibraryArticle . 2006Data 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/nature05103&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 448 citations 448 popularity Top 1% influence Top 1% impulse Top 1% 
Powered by BIP!more_vert Caltech Authors arrow_drop_down HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)Article . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)Caltech Authors (California Institute of Technology)Article . 2006Full-Text: https://doi.org/10.1038/nature05103Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2006Data sources: INRIA a CCSD electronic archive servereScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of Californiahttps://dx.doi.org/10.48550/ar...Article . 2006License: arXiv Non-Exclusive DistributionData sources: DataciteeScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of CaliforniaUniversity of North Texas: UNT Digital LibraryArticle . 2006Data 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/nature05103&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
description Publicationkeyboard_double_arrow_right Article , Preprint , Journal 2006Embargo end date: 01 Jan 2006 France, United States, United States, United States, United States, United KingdomPublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCHowell, D.A.; Sullivan, M.; Nugent, P.E.; Ellis, R.S.; Conley, A.J.; Le Borgne, Damien; Carlberg, R.G.; Guy, J.; Balam, D.; Basa, S.; Fouchez, D.; Hook, I.M.; Hsiao, E.Y.; Neill, J.D.; Pain, R.; Perrett, K.M.; Pritchet, C.J.;The acceleration of the expansion of the universe, and the need for Dark Energy, were inferred from the observations of Type Ia supernovae (SNe Ia). There is consensus that SNe Ia are thermonuclear explosions that destroy carbon-oxygen white dwarf stars that accrete matter from a companion star, although the nature of this companion remains uncertain. SNe Ia are thought to be reliable distance indicators because they have a standard amount of fuel and a uniform trigger -- they are predicted to explode when the mass of the white dwarf nears the Chandrasekhar mass -- 1.4 solar masses. Here we show that the high redshift supernova SNLS-03D3bb has an exceptionally high luminosity and low kinetic energy that both imply a super-Chandrasekhar mass progenitor. Super-Chandrasekhar mass SNe Ia should preferentially occur in a young stellar population, so this may provide an explanation for the observed trend that overluminous SNe Ia only occur in young environments. Since this supernova does not obey the relations that allow them to be calibrated as standard candles, and since no counterparts have been found at low redshift, future cosmology studies will have to consider contamination from such events. 9 pages, 4 figures. To appear in Nature Sept. 21. Accompanying News & Views in same issue. Supplementary information available at www.nature.com/nature
Caltech Authors arrow_drop_down HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)Article . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)Caltech Authors (California Institute of Technology)Article . 2006Full-Text: https://doi.org/10.1038/nature05103Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2006Data sources: INRIA a CCSD electronic archive servereScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of Californiahttps://dx.doi.org/10.48550/ar...Article . 2006License: arXiv Non-Exclusive DistributionData sources: DataciteeScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of CaliforniaUniversity of North Texas: UNT Digital LibraryArticle . 2006Data 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/nature05103&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 448 citations 448 popularity Top 1% influence Top 1% impulse Top 1% Powered by BIP!more_vert Caltech Authors arrow_drop_down HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)Article . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)Caltech Authors (California Institute of Technology)Article . 2006Full-Text: https://doi.org/10.1038/nature05103Data sources: Bielefeld Academic Search Engine (BASE)Institut national des sciences de l'Univers: HAL-INSUArticle . 2006Full-Text: https://hal.in2p3.fr/in2p3-00103975Data sources: Bielefeld Academic Search Engine (BASE)INRIA a CCSD electronic archive serverArticle . 2006Data sources: INRIA a CCSD electronic archive servereScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of Californiahttps://dx.doi.org/10.48550/ar...Article . 2006License: arXiv Non-Exclusive DistributionData sources: DataciteeScholarship - University of CaliforniaArticle . 2008Data sources: eScholarship - University of CaliforniaUniversity of North Texas: UNT Digital LibraryArticle . 2006Data 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/nature05103&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu