Jet precession in neutrino-cooled disks for gamma-ray bursts: The effects of the mass and spin of a black hole

被引：5
作者：
Liu Tong [1 ]
Xue Li
机构：
[1] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
来源：
CHINESE PHYSICS B | 2012年 / 21卷 / 06期
基金：
中国国家自然科学基金;
关键词：
accretion; accretion disks; black hole physics; gamma rays; bursts; VERTICAL STRUCTURE; ACCRETION DISK; DRIVEN;
D O I：
10.1088/1674-1056/21/6/069801
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a model of jet precession driven by a neutrino-cooled disk around a spinning black hole to explain the quasi-periodic features observed in some gamma-ray burst light curves. The different orientations of the rotational axes between the outer part of a neutrino-cooled disk and a black hole result in precessions of the central black hole and the inner part of the disk. Hence, the jet arising from the neutrino annihilation above the inner disk is driven to precession. We find that the period of precession is positively correlated with the mass as well as the spin of a black hole.
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页数：4
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