Ringed accretion disks: Instabilities

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F16%3AN0000023" target="_blank" >RIV/47813059:19240/16:N0000023 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.3847/0067-0049/223/2/27/meta" target="_blank" >http://iopscience.iop.org/article/10.3847/0067-0049/223/2/27/meta</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/0067-0049/223/2/27" target="_blank" >10.3847/0067-0049/223/2/27</a>

Result language
angličtina
Original language name
Ringed accretion disks: Instabilities
Original language description
We analyze the possibility that several instability points may be formed, due to the Paczyński mechanism of violation of mechanical equilibrium, in the orbiting matter around a supermassive Kerr black hole. We consider a recently proposed model of a ringed accretion disk, made up by several tori (rings) that can be corotating or counter-rotating relative to the Kerr attractor due to the history of the accretion process. Each torus is governed by the general relativistic hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluids. We prove that the number of the instability points is generally limited and depends on the dimensionless spin of the rotating attractor.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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