Zhang 2010 电子在弯曲磁场中的同步曲率自康普顿辐射

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Title:		Synchro-Curvature Self-Compton Radiation of Electrons in Curved Magnetic Fields
Authors:		Zhang, Bo; Dai, Zi-Gao
Publication:		eprint arXiv:1012.3485
Publication Date:		12/2010
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		9 pages, 11 figures, accepted for publication in MNRAS
Bibliographic Code:		2010arXiv1012.3485Z

Abstract

In this paper we present the spectrum of synchro-curvature self-Compton (SCSC) radiation of relativistic electrons with a power-law distribution of Lorentz factors. We find that the resulting spectrum is significantly different from that of either synchrotron self-Compton or curvature self-Compton radiation if both the curvature radius of the magnetic field and the cyclotron radius of the electrons are within some proper ranges. The effects of electrons' cooling and drifting, the low-energy self absorption in seed spectra, and the Klein-Nishina cutoff are also discussed, in order to get an accurate picture. We take gamma-ray bursts (GRBs) as our example environment for discussions. The results would be considered as a universal approach of the self-Compton emission of relativistic electrons moving in curved magnetic fields, and thus could be applied to many astrophysical phenomena, including GRBs, active galactic nuclei (AGNs), and pulsars.

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