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Title: VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS

Abstract

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.

Authors:
; ;  [1];  [2]
  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)
Publication Date:
OSTI Identifier:
22522407
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 805; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCRETION DISKS; ADVECTION; ANNIHILATION; BLACK HOLES; CONVECTION; COSMIC GAMMA BURSTS; COSMIC NEUTRINOS; DENSITY; LUMINOSITY; SPHERICAL CONFIGURATION; STAR ACCRETION

Citation Formats

Liu, Tong, Gu, Wei-Min, Li, Ang, and Kawanaka, Norita, E-mail: tongliu@xmu.edu.cn, E-mail: norita@astron.s.u-tokyo.ac.jp. VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS. United States: N. p., 2015. Web. doi:10.1088/0004-637X/805/1/37.
Liu, Tong, Gu, Wei-Min, Li, Ang, & Kawanaka, Norita, E-mail: tongliu@xmu.edu.cn, E-mail: norita@astron.s.u-tokyo.ac.jp. VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS. United States. doi:10.1088/0004-637X/805/1/37.
Liu, Tong, Gu, Wei-Min, Li, Ang, and Kawanaka, Norita, E-mail: tongliu@xmu.edu.cn, E-mail: norita@astron.s.u-tokyo.ac.jp. Wed . "VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS". United States. doi:10.1088/0004-637X/805/1/37.
@article{osti_22522407,
title = {VERTICAL CONVECTION IN NEUTRINO-DOMINATED ACCRETION FLOWS},
author = {Liu, Tong and Gu, Wei-Min and Li, Ang and Kawanaka, Norita, E-mail: tongliu@xmu.edu.cn, E-mail: norita@astron.s.u-tokyo.ac.jp},
abstractNote = {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.},
doi = {10.1088/0004-637X/805/1/37},
journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 805,
place = {United States},
year = {2015},
month = {5}
}