MG13 - Talk detail |
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Participant |
Barniol Duran, Rodolfo | |||||||
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Institution |
Hebrew University of Jerusalem - Racah Institute of Physics - Jerusalem - Givat Ram - Israel | |||||||
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Session |
GRB2 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
High-Energy Emission in Gamma-Ray Bursts | |||||
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Abstract |
Gamma-ray bursts (GRBs) show a puzzling behavior at photon energies >100 MeV compared to their more “typical†emission at MeV energies. In this talk, I will show that these >100 MeV photons are produced when the GRB jet interacts with the medium that surrounds it: the external forward shock model. I arrive at this conclusion not only by studying the >100 MeV emission, but also by studying the afterglow observations. I corroborate this model by studying the electron acceleration in the external forward shock model and find that electrons can radiate at the maximum observed energy of ∼10 GeV. I will also briefly discuss the generation of magnetic fields in relativistic shocks in the context of these findings. |
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