Liu 2009 NDAF的垂直结构和应用于伽马暴

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Title:		Vertical Structure of Neutrino-dominated Accretion Disk and Applications to Gamma-ray Bursts
Authors:		Liu, Tong; Gu, Wei-Min; Dai, Zi-Gao; Lu, Ju-Fu
Affiliation:		AA(Department of Astronomy, Nanjing University, Nanjing, Jiangsu 210093, China tongliu@nju.edu.cn), AB(Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005, China guwm@xmu.edu.cn), AC(Department of Astronomy, Nanjing University, Nanjing, Jiangsu 210093, China ), AD(Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005, China)
Publication:		The Astrophysical Journal, Volume 709, Issue 2, pp. 851-855 (2010). (ApJ Homepage)
Publication Date:		02/2010
Origin:		IOP
ApJ Keywords:		accretion, accretion disks, black hole physics, gamma-ray burst: general
DOI:		10.1088/0004-637X/709/2/851
Bibliographic Code:		2010ApJ...709..851L

Abstract

We revisit the vertical structure of neutrino-dominated accretion flows in spherical coordinates. We stress that the flow should be geometrically thick when advection becomes dominant. In our calculation, the luminosity of neutrino annihilation is enhanced by 1 or 2 orders of magnitude. The empty funnel along the rotation axis can naturally explain the neutrino annihilable ejection.

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