| Issue |
EAS Publications Series
Volume 61, 2013
Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe
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|---|---|---|
| Page(s) | 115 - 122 | |
| Section | Chapter III: Prompt Emission-II Theory | |
| DOI | https://doi.org/10.1051/eas/1361017 | |
| Published online | 22 July 2013 | |
A.J. Castro-Tirado, J.Gorosabel and I.H. Park (eds)
EAS Publications Series, 61 (2013) 115-122
Wide-Band Spectra of Prompt Emission
Interactive Research Center of
Science, Tokyo Institute of Technology, 2-12-1 Ookayama Meguro-ku, Tokyo
152-8550,
Japan
The Fermi observatory has detected GeV photons from several GRBs. Some of them show an extra spectral component, which is a hint for emission mechanism of GRBs. Here we discuss the GeV emission mechanism according to several promising models. The difference between models will appear in temporal evolution of the photon spectrum. To verify this, instruments that can obtain high photon statistics like CTA are desired. We also discuss the photosphere model, which is recently supported by wide-band observations with Fermi.
© EAS, EDP Sciences 2013