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

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.

Keywords: accretion accretion disks black hole physics gamma rays bursts

Received: 22 January 2012
Revised: 03 March 2012
Accepted manuscript online:

PACS:	98.62.Mw	(Infall, accretion, and accretion disks)
	97.60.Lf	(Black holes)
	98.70.Rz	(γ-ray sources; γ-ray bursts)

Fund: 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).

Corresponding Authors: Liu Tong
E-mail: Liu Tong, Xue Li

Cite this article:

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 2012 Chin. Phys. B 21 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

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