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Fermi-LAT Observations of the Gamma-Ray Burst GRB 130427A
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2014 (engelsk)Inngår i: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 343, nr 6166, s. 42-47Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The observations of the exceptionally bright gamma-ray burst (GRB) 130427A by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope provide constraints on the nature of these unique astrophysical sources. GRB 130427A had the largest fluence, highest-energy photon (95 GeV), longest gamma-ray duration (20 hours), and one of the largest isotropic energy releases ever observed from a GRB. Temporal and spectral analyses of GRB 130427A challenge the widely accepted model that the nonthermal high-energy emission in the afterglow phase of GRBs is synchrotron emission radiated by electrons accelerated at an external shock.

sted, utgiver, år, opplag, sider
2014. Vol. 343, nr 6166, s. 42-47
Emneord [en]
Large-Area Telescope, High-Energy Emission, Spectral Component, Afterglows, Prompt
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Identifikatorer
URN: urn:nbn:se:kth:diva-140369DOI: 10.1126/science.1242353ISI: 000329162000042Scopus ID: 2-s2.0-84896723186OAI: oai:DiVA.org:kth-140369DiVA, id: diva2:690566
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QC 20140124

Tilgjengelig fra: 2014-01-24 Laget: 2014-01-23 Sist oppdatert: 2017-12-06bibliografisk kontrollert

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Axelsson, MagnusRyde, Felix

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