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.

星期一, 十一月 10, 2008

Yu 2008 晚期内激波的X和高能辐射

主要内容:
晚期内激波, 同步+SSC

晚期体现在哪里? 粗略地文中貌似没找到.

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文章信息:

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· arXiv e-print (arXiv:0811.1068)
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Title:
X-Ray and high energy flares from late internal shocks of gamma-ray bursts
Authors:
Yu, Y. W.; Dai, Z. G.
Publication:
eprint arXiv:0811.1068
Publication Date:
11/2008
Origin:
ARXIV
Keywords:
Astrophysics
Comment:
18 pages, 7 figures, accepted for publication in ApJ
Bibliographic Code:
2008arXiv0811.1068Y

Abstract

We study afterglow flares of gamma-ray bursts (GRBs) in the framework of the late internal shock (LIS) model based on a careful description for the dynamics of a pair of shocks generated by a collision between two homogeneous shells,. First, by confronting the model with some fundamental observational features of X-ray flares, we find some constraints on the properties of the pre-collision shells that are directly determined by the central engine of GRBs. Second, high energy emission associated with X-ray flares, which arises from synchrotron self-Compton (SSC) emission of LISs, is investigated in a wide parameter space. The predicted flux of high energy flares may reach as high as $\sim 10^{-8}\rm erg cm^{-2}s^{-1}$, which is likely to be detectable with the Large Area Telescope (LAT) aboard \textit{the Fermi Space Telescope}
Bibtex entry for this abstract Preferred format for this abstract (see Preferences)

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