伽玛暴(Gamma-Ray Burst)笔记。记录有关伽玛暴的新文章,另外也包括看的老文章、自己的想法、以及跟天文相关的一些东西。 Feel free to leave me a message by comments or by email.

星期五, 九月 21, 2007

Gedalin 2007 相对论激波的电子加热

主要内容:
给出了在相对论激波的下电子的加速机制,既可以是磁场也可以是电场。也符合同步辐射的要求。

精彩摘抄:


文章信息:

arXiv:0709.3097 [ps, pdf, other]
Title: Efficient electron heating in relativistic shocks and gamma ray burst afterglow
Comments: revtex4
Subjects: Astrophysics (astro-ph)

Electrons in shocks are efficiently energized due to the cross-shock potential, which develops because of differential deflection of electrons and ions by the magnetic field in the shock front. The electron energization is necessarily accompanied by scattering and thermalization. The mechanism is efficient in both magnetized and non-magnetized relativistic electron-ion shocks. It is proposed that the synchrotron emission from the heated electrons in a layer of strongly enhanced magnetic field is responsible for gamma ray burst afterglows.

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