Ringed accretion disks: equilibrium configurations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F15%3A%230005463" target="_blank" >RIV/47813059:19240/15:#0005463 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/0067-0049/221/2/25" target="_blank" >http://iopscience.iop.org/article/10.1088/0067-0049/221/2/25</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0067-0049/221/2/25" target="_blank" >10.1088/0067-0049/221/2/25</a>

Result language

angličtina

Original language name

Ringed accretion disks: equilibrium configurations

Original language description

We investigate a model of a ringed accretion disk, made up by several rings rotating around a supermassive Kerr black hole attractor. Each toroid of the ringed disk is governed by the general relativity hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluids. Properties of the tori can then be determined by an appropriately defined effective potential reflecting the background Kerr geometry and the centrifugal effects. The ringed disks could be created in various regimes during the evolution of matter configurations around supermassive black holes. Therefore, both corotating and counterrotating rings have to be considered as being a constituent of the ringed disk. We provide constraints on the model parameters for the existence and stability of various ringed configurations and discuss occurrence of accretion onto the Kerr black hole and possible launching of jets from the ringed disk. We demonstrate that various ringed disks can be characterized by a maxi

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

<a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

The Astrophysical Journal Supplement Series

ISSN

0067-0049

e-ISSN

—

Volume of the periodical

221

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

40

Pages from-to

1-40

UT code for WoS article

000366620900003

EID of the result in the Scopus database

2-s2.0-84950268186