X-ray flares of γ-ray bursts: Quakes of solid quark stars?

被引：18
|
作者：
Xu RenXin [1 ,2 ]
Liang EnWei [3 ]
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China
来源：
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY | 2009年 / 52卷 / 02期
基金：
中国国家自然科学基金;
关键词：
gamma-rays; bursts: X-rays; neutron stars; elementary particles; SWIFT XRT DATA; COMPREHENSIVE ANALYSIS; SPECTRAL EVOLUTION; OPTICAL AFTERGLOW; LIGHT-CURVES; SUPERNOVA; ACCRETION; ORIGIN; MODEL; ENERGY;
D O I：
10.1007/s11433-009-0045-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A star-quake model is proposed 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 Metga-electron-volts, 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.
引用
收藏
页码：315 / 320
页数：6
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