Inverse compton radiation from GRB afterglows in the VHE range

Jagdish C. Joshi, Soebur Razzaque

Research output: Contribution to journalConference articlepeer-review


The observation of Gamma-ray bursts (GRBs) can be classified into prompt and afterglow emission. The prompt emission is observed for up to 100s of seconds after the trigger of the event while a delayed and long-lasting afterglow emission is followed after this phase. The prompt emission dominates in the γ-rays (keV-MeV-GeV), while the afterglow emission mainly occurs in X-ray, UV, optical, radio wavelengths and possibly in γ-rays. In this work, we study the signature of inverse Compton emission in the afterglow emission of GRBs. We consider the expansion of an adiabatic blast wave into a constant density medium and use the observation of GRB 130427A afterglow to constrain the model parameters. The flux produced via inverse-Compton mechanism have been discussed and also possible detection by the Cherenkov Telescope Array mainly in the range 30 GeV- 1 TeV have been discussed.

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 2018
Event6th High Energy Astrophysics in Southern Africa, HEASA 2018 - Parys, Free State, South Africa
Duration: 1 Aug 20183 Aug 2018

ASJC Scopus subject areas

  • Multidisciplinary


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