STUCHLÍK, Zdeněk, Martin KOLOŠ, Jiří KOVÁŘ, Petr SLANÝ and Arman TURSUNOV. Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes. Universe. 2020, vol. 6, No 2, p. "26-1"-"26-75", 75 pp. ISSN 2218-1997. Available from: https://dx.doi.org/10.3390/universe6020026.
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Basic information
Original name Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes
Authors STUCHLÍK, Zdeněk (203 Czech Republic, belonging to the institution), Martin KOLOŠ (203 Czech Republic, belonging to the institution), Jiří KOVÁŘ (203 Czech Republic, belonging to the institution), Petr SLANÝ (203 Czech Republic, belonging to the institution) and Arman TURSUNOV (860 Uzbekistan, belonging to the institution).
Edition Universe, 2020, 2218-1997.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher Switzerland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/20:A0000036
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.3390/universe6020026
UT WoS 000519107400016
Keywords in English rotating black hole; accretion disks and tori; vacuum energy an magnetic field; ultra-high energy particles
Tags FÚ, FÚ2020, GA19-03950S, RIV21
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 23/3/2021 21:50.
Abstract
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 similar to 1010M circle dot surrounded by sufficiently strong magnetic field with B similar to 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.
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