SELF-GRAVITY IN NEUTRINO-DOMINATED ACCRETION DISKS

We present the effects of self-gravity on the vertical structure and neutrino luminosity of the neutrino-dominated accretion disks in cylindrical coordinates. It is found that significant changes of the structure appear in the outer region of the disk, especially for high accretion rates (e.g., [gap...

Full description

Saved in:
Bibliographic Details
Published in:The Astrophysical journal 2014-08, Vol.791 (1), p.1-6
Main Authors: Liu, Tong, Yu, Xiao-Fei, Gu, Wei-Min, Lu, Ju-Fu
Format: Article
Language:English
Subjects:
Accretion
ACCRETION DISKS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BLACK HOLES
COSMIC GAMMA BURSTS
CYLINDRICAL CONFIGURATION
Cylindrical coordinates
DISTRIBUTION
EMISSION
Flares
Gamma ray bursts
GRAVITATION
GRAVITATIONAL INSTABILITY
LUMINOSITY
NEUTRINOS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present the effects of self-gravity on the vertical structure and neutrino luminosity of the neutrino-dominated accretion disks in cylindrical coordinates. It is found that significant changes of the structure appear in the outer region of the disk, especially for high accretion rates (e.g., [gap]1 M sub([odot]) s super(-1)), and thus cause the slight increase in the neutrino luminosity. Furthermore, the gravitational instability of the disk is reviewed by the vertical distribution of the Toomre parameter, which may account for the late-time flares in gamma-ray bursts and the extended emission in short-duration gamma-ray bursts.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/791/1/69