Xu 2008 X射线耀发的夸克星模型

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Title:		X-Ray Flares of Gamma-Ray Bursts: Quakes of Solid Quark Stars?
Authors:		Xu, Renxin; Liang, Enwei
Publication:		eprint arXiv:0811.0234
Publication Date:		11/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		8 pages, latex file. 2 figures. To appear in Science in China Series G
Bibliographic Code:		2008arXiv0811.0234X

Abstract

We propose a star-quake model to understand X-ray flares of both long and short Gamma-ray bursts (GRBs) in a solid quark star regime. Two kinds of central engines for GRBs are available if pulsar-like stars are actually (solid) quark stars, i.e., the SNE-type GRBs and the SGR-type GRBs. It is found that a quark star could be solidified about 10^3 to 10^6 s later after its birth if the critical temperature of phase transition is a few MeV, and then a new source of free energy (i.e., elastic and gravitational ones, rather than rotational or magnetic energy) could be possible to power GRB X-ray flares.

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