Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F20%3AA0000613" target="_blank" >RIV/47813059:19240/20:A0000613 - isvavai.cz</a>
Alternative codes found
RIV/47813059:19630/20:A0000036
Result on the web
<a href="https://www.mdpi.com/2218-1997/6/2/26" target="_blank" >https://www.mdpi.com/2218-1997/6/2/26</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/universe6020026" target="_blank" >10.3390/universe6020026</a>
Alternative languages
Result language
angličtina
Original language name
Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes
Original language description
We present a review of the influence of cosmic repulsion and external magnetic fields on accretion disks rotating around rotating black holes and on jets associated with these rotating configurations. We consider both geometrically thin and thick disks. We show that the vacuum energy represented by the relic cosmological constant strongly limits extension of the accretion disks that is for supermassive black holes comparable to extension of largest galaxies, and supports collimation of jets at large distances from the black hole. We further demonstrate that an external magnetic field crucially influences the fate of ionized Keplerian disks causing creation of winds and jets, enabling simultaneously acceleration of ultra-high energy particles with energy up to 1021 eV around supermassive black holes with M~10^10M_odot surrounded by sufficiently strong magnetic field with B~104 G. We also show that the external magnetic fields enable existence of “levitating" off-equatorial clouds or tori, along with the standard equatorial toroidal structures, if these carry a non-vanishing, appropriately distributed electric charge.
Czech name
—
Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA19-03950S" target="_blank" >GA19-03950S: Testing strong gravity via black holes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Universe
ISSN
2218-1997
e-ISSN
2218-1997
Volume of the periodical
2
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
76
Pages from-to
26
UT code for WoS article
000519107400016
EID of the result in the Scopus database
2-s2.0-85079732797