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arXiv 1012.3485astro-ph.HE
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弯曲磁场中电子的同步曲率自康普顿辐射

Synchro-Curvature Self-Compton Radiation of Electrons in Curved Magnetic Fields

Bo Zhang, Zi-Gao Dai

摘要:

本文给出了洛伦兹因子服从幂律分布的相对论电子的同步曲率自康普顿辐射谱。我们发现,如果磁场的曲率半径和电子的回旋半径都在一定范围内,则所得到的谱与同步自康普顿辐射谱和曲率自康普顿辐射谱有很大的不同。讨论了电子的冷却和漂移、种子谱中的低能自吸收以及Klein-Nishina截止等因素对图像的影响。我们以伽马射线暴(GRB)为例进行讨论。这一结果将被认为是研究弯曲磁场中相对论电子自康普顿辐射的一种普遍方法,因而可应用于伽玛暴、活动星系核和射电星等天体物理现象。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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