Gomboc 2010 Swift暴的时标和硬度

主要内容:
对Swift暴有红移的做的统计。说长短暴的时间分割在0.65s。
会议论文，比较粗糙，可靠性不强。

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Title:		Duration and hardness ratio of Swift GRBs
Authors:		Gomboc, Andreja; Kopac, Drejc
Publication:		eprint arXiv:1006.5550
Publication Date:		06/2010
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena
Comment:		4 pages, 3 figures, proceedings of the The Shocking Universe meeting, Venice, September 2009
Bibliographic Code:		2010arXiv1006.5550G

Abstract

We review the T_90 duration and hardness ratio of Swift Gamma Ray Bursts (GRBs). We focus on GRBs with known redshift and review their gamma properties in the GRBs rest frames. We find that GRBs number vs. T_90/(1+z) distribution shows a separation between two classes at 0.65 s. Furthermore, we find that the difference in hardness ratio between short and long bursts is not very pronounced and depends on energy channels used for comparison.

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