He, Hao-Ning 2009 短暴的高能辐射

主要内容:
同步辐射的延伸或者SSC

精彩摘抄:


文章信息:

· Find Similar Abstracts (with default settings below)

· arXiv e-print (arXiv:0908.2580)

·

· Translate This Page

Title:		The early high-energy afterglow emission from Short GRBs
Authors:		He, Hao-Ning; Wang, Xiang-Yu
Publication:		eprint arXiv:0908.2580
Publication Date:		08/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		5 pages, 5 figures. This is a slightly expanded version of the paper that will appear in Science in China Series G
Bibliographic Code:		2009arXiv0908.2580H

Abstract

We calculate the high energy afterglow emission from short Gamma-Ray Bursts (SGRBs) in the external shock model. There are two possible components contributing to the high energy afterglow: the electron synchrotron emission and the synchrotron self-Compton (SSC) emission. We find that for typical parameter values of SGRBs, the early high-energy afterglow emission in 10 MeV-10 GeV is dominated by the synchrotron emission. For a burst occurring at redshift z =0.1, the high-energy emission can be detectable by Fermi LAT if the blast wave has an energy E>=10^51 ergs and the fraction of energy in electrons is \epsilon_e>=0.1 . This provides a possible explanation for the high energy tail of SGRB 081024B.

---

Bibtex entry for this abstract Preferred format for this abstract (see Preferences)