Volume 443, Number 3, December I 2005
|Page(s)||747 - 752|
|Published online||15 November 2005|
Gamma-ray bursts' spectra and synchro-curvature mechanism
University of Kentucky, USA e-mail: Yuqian.Zhang@uky.edu
2 University of Texas at Austin, USA
3 University of Science and Technology of China, PR China
Accepted: 21 May 2005
We apply the synchro-curvature mechanism instead of the synchrotron one to explain the spectra of gamma-ray bursts (hereafter, GRBs), especially those with both a turnoff point and high energy excess, which are often explained by combining with some other processes. We fit several spectra and get very good results. Our mechanism can give more detailed descriptions of the magnetic fields and strict constraints on the formation mechanism, thus it is helpful for understanding the physical processes in GRBs.
Key words: gamma rays: bursts / radiation mechanisms: non-thermal / magnetic fields
© ESO, 2005
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