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Constraints on the neutrino emission from the Galactic Ridge with the ANTARES telescope

Constraints on the neutrino emission from the Galactic Ridge with the ANTARES telescope
Compelling evidence for the existence of astrophysical neutrinos has been reported by the IceCube collaboration. Some features of the energy and declination distributions of IceCube events hint at a North/South asymmetry of the neutrino flux. This could be due to the presence of the bulk of our Galaxy in the Southern hemisphere. The ANTARES neutrino telescope, located in the Mediterranean Sea, has been taking data since 2007. It offers the best sensitivity to muon neutrinos produced by galactic cosmic ray interactions in this region of the sky. In this letter a search for an extended neutrino flux from the Galactic Ridge region is presented. Different models of neutrino production by cosmic ray propagation are tested. No excess of events is observed and upper limits for different neutrino flux spectral indices are set. This constrains the number of IceCube events possibly originating from the Galactic Ridge. A simple power-law extrapolation of the Fermi-LAT flux to associated IceCube High Energy Starting Events is excluded at 90% confidence level.
Astrofísica, Nuclear and High Energy Physics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], QC1-999, FOS: Physical sciences, Neutrino telescope, 530, Àrees temàtiques de la UPC::Física::Astronomia i astrofísica, Neutrins, Neutrinos, High Energy Astrophysical Phenomena (astro-ph.HE), ANTARES, Physics, ddc:530, ANTARES; Diffuse muon neutrino flux; Neutrino telescope, 520, Neutrino astrophysics, Diffuse muon neutrino flux, ANTARES; Diffuse muon neutrino flux; Neutrino telescope; Nuclear and High Energy Physics, :Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], FISICA APLICADA, international, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena
Astrofísica, Nuclear and High Energy Physics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], QC1-999, FOS: Physical sciences, Neutrino telescope, 530, Àrees temàtiques de la UPC::Física::Astronomia i astrofísica, Neutrins, Neutrinos, High Energy Astrophysical Phenomena (astro-ph.HE), ANTARES, Physics, ddc:530, ANTARES; Diffuse muon neutrino flux; Neutrino telescope, 520, Neutrino astrophysics, Diffuse muon neutrino flux, ANTARES; Diffuse muon neutrino flux; Neutrino telescope; Nuclear and High Energy Physics, :Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], FISICA APLICADA, international, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena
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citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).34 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% visibility views 83 download downloads 110 - 83views110downloads
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