VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS

Journal Article · Wed May 20 00:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/805/1/37· OSTI ID:22522407

Liu, Tong; Gu, Wei-Min; Li, Ang ^[1]; Kawanaka, Norita ^[2]

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1. Department of Astronomy and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005 (China)
2. Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

We present the effects of vertical convection on the structure and luminosity of the neutrino-dominated accretion flow (NDAF) around a stellar-mass black hole in spherical coordinates. We find that the convective energy transfer can suppress the radial advection in the NDAF and that the density, temperature, and opening angle are slightly changed. As a result, the neutrino and annihilation luminosities are increased, which allows the energy requirement of gamma-ray bursts to be achieved.

• OSTI ID: 22522407
• Journal Information: Astrophysical Journal, Vol. 805, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCRETION DISKS
ADVECTION
ANNIHILATION
BLACK HOLES
CONVECTION
COSMIC GAMMA BURSTS
COSMIC NEUTRINOS
DENSITY
LUMINOSITY
SPHERICAL CONFIGURATION
STAR ACCRETION