Adiabatic Non-resonant Acceleration in Magnetic Turbulence and Hard Spectra of Gamma-Ray Bursts

We introduce a non-resonant acceleration mechanism arising from the second adiabatic invariant in magnetic turbulence and apply it to study the prompt emission spectra of gamma-ray bursts (GRBs). The mechanism contains both the first- and second-order Fermi acceleration, originating from the interac...

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Veröffentlicht in:	Astrophysical journal. Letters 2017-09, Vol.846 (2), p.L28
Hauptverfasser:	Xu, Siyao, Zhang, Bing
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCELERATION acceleration of particles Adiabatic flow Alpha rays ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COOLING Cooling rate COSMIC GAMMA BURSTS Electron energy distribution ELECTRONS Emission analysis EMISSION SPECTRA ENERGY SPECTRA Gamma ray bursts Gamma ray spectra Gamma rays gamma-ray burst: general Hardening rate MAGNETIC FIELDS PHOTONS Power law Radiation SYNCHROTRON RADIATION TURBULENCE
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