scholarly journals External Inverse-Compton Emission from Low-luminosity Gamma-Ray Bursts: Application to GRB 190829A

2021 ◽  
Vol 920 (1) ◽  
pp. 55
Author(s):  
B. Theodore Zhang ◽  
Kohta Murase ◽  
Péter Veres ◽  
Péter Mészáros
2008 ◽  
Vol 17 (09) ◽  
pp. 1319-1332
Author(s):  
PETER MÉSZÁROS

Gamma-ray bursts are capable of accelerating cosmic rays up to GZK energies Ep ~ 1020 eV, which can lead to a flux at Earth comparable to that observed by large EAS arrays such as Auger. The semi-relativistic outflows inferred in GRB-related hypernovae are also likely sources of somewhat lower energy cosmic rays. Leptonic processes, such as synchrotron and inverse Compton, as well as hadronic processes, can lead to GeV-TeV gamma-rays measurable by GLAST, AGILE, or ACTs, providing useful probes of the burst physics and model parameters. Photo-meson interactions also produce neutrinos at energies ranging from sub-TeV to EeV, which will be probed with forthcoming experiments such as IceCube, ANITA and KM3NeT. This would provide information about the fundamental interaction physics, the acceleration mechanism, the nature of the sources and their environment.


2009 ◽  
Vol 708 (2) ◽  
pp. 1357-1365 ◽  
Author(s):  
X. H. Zhao ◽  
Z. G. Dai ◽  
T. Liu ◽  
J. M. Bai ◽  
Z. Y. Peng

2021 ◽  
Vol 908 (2) ◽  
pp. L36 ◽  
Author(s):  
B. Theodore Zhang ◽  
Kohta Murase ◽  
Chengchao Yuan ◽  
Shigeo S. Kimura ◽  
Peter Mészáros

2011 ◽  
Vol 20 (10) ◽  
pp. 2023-2027 ◽  
Author(s):  
XIANG-YU WANG ◽  
HAO-NING HE ◽  
ZHUO LI

Prompt and extended high-energy (> 100 MeV) gamma-ray emission has been observed from more than ten gamma-ray bursts by Fermi Large Area Telescope (LAT). Such emission is likely to be produced by synchrotron radiation of electrons accelerated in internal or external shocks. We show that IC scattering of these electrons with synchrotron photons are typically in the Klein–Nishina (KN) regime. For the prompt emission, the KN effect can suppress the IC component and as a result, one single component is seen in some strong bursts. The KN inverse-Compton cooling may also affect the low-energy electron number distribution and hence result in a hard low-energy synchrotron photon spectrum. During the afterglow, KN effect makes the Compton-Y parameter generally less than 1 in the first seconds for a wide range of parameter space. Furthermore, we suggest that the KN effect can explain the somewhat faster-than-expected decay of the early-time high-energy emission observed in GRB090510 and GRB090902B.


2001 ◽  
Vol 556 (2) ◽  
pp. 1010-1016 ◽  
Author(s):  
X. Y. Wang ◽  
Z. G. Dai ◽  
T. Lu

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