Can we probe the Lorentz factor of gamma-ray bursts from GeV-TeV spectra integrated over internal shocks?

We revisit the high-energy spectral cutoff originating from the electron-positron pair creation in the prompt phase of gamma-ray bursts (GRBs) with numerical and analytical calculations. We show that the conventional exponential and/or broken power law cutoff should be drastically modified to a shal...

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Veröffentlicht in:	arXiv.org 2010-09
Hauptverfasser:	Aoi, Junichi, Murase, Kohta, Takahashi, Keitaro, Ioka, Kunihito, Nagataki, Shigehiro
Format:	Artikel
Sprache:	eng
Schlagworte:	Breaking Galling Gamma ray bursts Gamma rays Lorentz factor Outflow Physics - Cosmology and Nongalactic Astrophysics Physics - High Energy Astrophysical Phenomena Power law Telescopes
Online-Zugang:	Volltext
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