Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments

Being the most extreme explosions in the universe, gamma-ray bursts (GRBs) provide a unique laboratory to study various plasma physics phenomena. The complex light curve and broad-band, non-thermal spectra indicate a very complicated system on the one hand, but, on the other hand, provide a wealth o...

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Main Author: Asaf Pe’er
Format: Article
Language:English
Published: MDPI AG 2019-02-01
Series:Galaxies
Subjects:
Online Access:https://www.mdpi.com/2075-4434/7/1/33
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author Asaf Pe’er
author_facet Asaf Pe’er
author_sort Asaf Pe’er
collection DOAJ
description Being the most extreme explosions in the universe, gamma-ray bursts (GRBs) provide a unique laboratory to study various plasma physics phenomena. The complex light curve and broad-band, non-thermal spectra indicate a very complicated system on the one hand, but, on the other hand, provide a wealth of information to study it. In this chapter, I focus on recent progress in some of the key unsolved physical problems. These include: (1) particle acceleration and magnetic field generation in shock waves; (2) possible role of strong magnetic fields in accelerating the plasmas, and accelerating particles via the magnetic reconnection process; (3) various radiative processes that shape the observed light curve and spectra, both during the prompt and the afterglow phases, and finally (4) GRB environments and their possible observational signature.
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spelling doaj.art-b55964f8655744c085deadd0723018782022-12-22T02:58:49ZengMDPI AGGalaxies2075-44342019-02-01713310.3390/galaxies7010033galaxies7010033Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and EnvironmentsAsaf Pe’er0Physics Department, Bar Ilan University, Ramat-Gan 52900, IsraelBeing the most extreme explosions in the universe, gamma-ray bursts (GRBs) provide a unique laboratory to study various plasma physics phenomena. The complex light curve and broad-band, non-thermal spectra indicate a very complicated system on the one hand, but, on the other hand, provide a wealth of information to study it. In this chapter, I focus on recent progress in some of the key unsolved physical problems. These include: (1) particle acceleration and magnetic field generation in shock waves; (2) possible role of strong magnetic fields in accelerating the plasmas, and accelerating particles via the magnetic reconnection process; (3) various radiative processes that shape the observed light curve and spectra, both during the prompt and the afterglow phases, and finally (4) GRB environments and their possible observational signature.https://www.mdpi.com/2075-4434/7/1/33jetsradiation mechanism: non-thermalgalaxies: activegamma-ray burstsTBD
spellingShingle Asaf Pe’er
Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
Galaxies
jets
radiation mechanism: non-thermal
galaxies: active
gamma-ray bursts
TBD
title Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
title_full Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
title_fullStr Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
title_full_unstemmed Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
title_short Plasmas in Gamma-Ray Bursts: Particle Acceleration, Magnetic Fields, Radiative Processes and Environments
title_sort plasmas in gamma ray bursts particle acceleration magnetic fields radiative processes and environments
topic jets
radiation mechanism: non-thermal
galaxies: active
gamma-ray bursts
TBD
url https://www.mdpi.com/2075-4434/7/1/33
work_keys_str_mv AT asafpeer plasmasingammarayburstsparticleaccelerationmagneticfieldsradiativeprocessesandenvironments