Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black ...

@article{35260,
   author = {Stuchlík, Zdeněk and Kološ, Martin and Kovář, Jiří and Slaný, Petr and Tursunov, Arman},
   article_location = {Basel, Switzerland},
   article_number = {6},
   doi = {http://dx.doi.org/10.3390/universe6020026},
   keywords = {rotating black hole; accretion disks and tori; vacuum energy and magnetic field; ultra-high energy particles},
   language = {eng},
   issn = {2218-1997},
   journal = {Universe},
   title = {Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes},
   url = {https://www.mdpi.com/2218-1997/6/2/26},
   volume = {2},
   year = {2020}
}

TY  - JOUR
ID  - 35260
AU  - Stuchlík, Zdeněk - Kološ, Martin - Kovář, Jiří - Slaný, Petr - Tursunov, Arman
PY  - 2020
TI  - Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes
JF  - Universe
VL  - 2
IS  - 6
SP  - 26
EP  - 26
PB  - Multidisciplinary Digital Publishing Institute
SN  - 22181997
KW  - rotating black hole
KW  - accretion disks and tori
KW  - vacuum energy and magnetic field
KW  - ultra-high energy particles
UR  - https://www.mdpi.com/2218-1997/6/2/26
L2  - https://www.mdpi.com/2218-1997/6/2/26
N2  - 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.
ER  - 

STUCHLÍK, Zdeněk, Martin KOLOŠ, Jiří KOVÁŘ, Petr SLANÝ a Arman TURSUNOV. Influence of Cosmic Repulsion and Magnetic Fields on Accretion Disks Rotating around Kerr Black Holes. \textit{Universe}. Basel, Switzerland: Multidisciplinary Digital Publishing Institute, 2020, roč.~2, č.~6, s.~26-101. ISSN~2218-1997. Dostupné z: https://dx.doi.org/10.3390/universe6020026.