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

doi:10.1088/1674-1056/21/6/069801

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 69801-069801.doi: 10.1088/1674-1056/21/6/069801

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇

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

刘彤, 薛力

Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005, China

收稿日期:2012-01-22 修回日期:2012-03-03 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2009CB824800), the National Natural Science Foundation of China (Grant Nos. 10833002, 11003016, 11073015, and 11103015), and the Natural Science Foundation of Fujian Province, China (Grant No. 2010J01017).

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

Liu Tong(刘彤)^† and Xue Li(薛力)

Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005, China

Received:2012-01-22 Revised:2012-03-03 Online:2012-05-01 Published:2012-05-01
Contact: Liu Tong E-mail:Liu Tong, Xue Li
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2009CB824800), the National Natural Science Foundation of China (Grant Nos. 10833002, 11003016, 11073015, and 11103015), and the Natural Science Foundation of Fujian Province, China (Grant No. 2010J01017).

摘要/Abstract

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.

关键词: accretion, accretion disks, black hole physics, gamma rays, bursts

Abstract: 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.

Key words: accretion, accretion disks, black hole physics, gamma rays, bursts

中图分类号: (Infall, accretion, and accretion disks)

98.62.Mw

97.60.Lf (Black holes) 98.70.Rz (γ-ray sources; γ-ray bursts)

刘彤, 薛力. Jet precession in neutrino-cooled disks for gamma-ray bursts: The effects of the mass and spin of a black hole[J]. 中国物理B, 2012, 21(6): 69801-069801.

Liu Tong(刘彤) and Xue Li(薛力) . Jet precession in neutrino-cooled disks for gamma-ray bursts: The effects of the mass and spin of a black hole[J]. Chin. Phys. B, 2012, 21(6): 69801-069801.

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

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

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