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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

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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