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.

星期日, 五月 13, 2007

Gou 2007 GLAST对余辉的可探测性分析

主要内容:
一Swift暴观测为基础,考虑同步自康普顿产生的高能光子的流量,看是否在GLAST LAT或者AGILE的灵敏度之上。认为GLAST能达到5倍以上的Swift探测率,而可探测到更多的高能余辉(这不是一般意义上的孤儿余辉吧)。

精彩摘抄:


文章信息:
arXiv:0705.1545 [ps, pdf, other] : Title: GLAST Prospects for Swift-Era Afterglows
Authors: L. J. Gou, P. Meszaros
Comments: 18 pages, 5 figures, ApJ submitted

We calculate the GeV spectra of GRB afterglows produced by inverse Compton scattering of the sub-MeV emission of these objects. We improve on earlier treatments by using refined afterglow parameters and new model developments motivated by recent Swift observations. We present time-dependent GeV spectra for standard, constant parameter models, as well as for models with energy injection and with time-varying parameters, for a range of burst parameters. We evaluate the limiting redshift to which such afterglows can be detected by the GLAST LAT, as well as AGILE.

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