Ringed accretion disks: equilibrium configurations

@article{46120,
   author = {Pugliese, Daniela and Stuchlík, Zdeněk},
   article_location = {GB - Spojené království Velké Británie a},
   article_number = {2},
   doi = {http://dx.doi.org/10.1088/0067-0049/221/2/25},
   keywords = {accretion; black hole physics; hydrodynamics; accretion disks},
   language = {eng},
   issn = {0067-0049},
   journal = {The Astrophysical Journal Supplement Series},
   title = {Ringed accretion disks: equilibrium configurations},
   url = {https://iopscience.iop.org/article/10.1088/0067-0049/221/2/25},
   volume = {221},
   year = {2015}
}

TY  - JOUR
ID  - 46120
AU  - Pugliese, Daniela - Stuchlík, Zdeněk
PY  - 2015
TI  - Ringed accretion disks: equilibrium configurations
JF  - The Astrophysical Journal Supplement Series
VL  - 221
IS  - 2
SP  - 1-40
EP  - 1-40
SN  - 00670049
KW  - accretion
KW  - black hole physics
KW  - hydrodynamics
KW  - accretion disks
UR  - https://iopscience.iop.org/article/10.1088/0067-0049/221/2/25
N2  - We investigate a model of a ringed accretion disk, made up by several rings rotating around a supermassive Kerr black hole attractor. Each toroid of the ringed disk is governed by the general relativity hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluids. Properties of the tori can then be determined by an appropriately defined effective potential reflecting the background Kerr geometry and the centrifugal effects. The ringed disks could be created in various regimes during the evolution of matter configurations around supermassive black holes. Therefore, both corotating and counterrotating rings have to be considered as being a constituent of the ringed disk. We provide constraints on the model parameters for the existence and stability of various ringed configurations and discuss occurrence of accretion onto the Kerr black hole and possible launching of jets from the ringed disk. We demonstrate that various ringed disks can be characterized by a maxi
ER  - 

PUGLIESE, Daniela a Zdeněk STUCHLÍK. Ringed accretion disks: equilibrium configurations. \textit{The Astrophysical Journal Supplement Series}. GB - Spojené království Velké Británie a, roč.~221, č.~2, s.~1-40. ISSN~0067-0049. doi:10.1088/0067-0049/221/2/25. 2015.