Origin of the GeV emission during the X-ray flaring activity in GRB 100728A

Hao Ning He, Bin Bin Zhang, Xiang Yu Wang, Zhuo Li, Peter Mészáros

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Recently, Fermi-LAT detected GeV emission during the X-ray flaring activity in GRB 100728A. We study various scenarios for its origin. The hard spectrum of the GeV emission favors the external inverse Compton (EIC) origin in which X-ray flare photons are up-scattered by relativistic electrons in the external forward shock. This EIC scenario, with anisotropic scattering effect taken into account, can reproduce the temporal and spectral properties of the GeV emission in GRB 100728A.

Original languageEnglish (US)
Article number178
JournalAstrophysical Journal
Volume753
Issue number2
DOIs
StatePublished - Jul 10 2012

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'Origin of the GeV emission during the X-ray flaring activity in GRB 100728A'. Together they form a unique fingerprint.

  • Cite this