Tori sequences as remnants of multiple accreting periods of Kerr SMBHs

@article{30100,
   author = {Pugliese, Daniela and Stuchlík, Zdeněk},
   article_number = {Marz},
   doi = {http://dx.doi.org/10.1016/j.jheap.2017.11.001},
   keywords = {accretion disks; accretion; jets; black hole physics; hydrodynamics},
   language = {eng},
   issn = {2214-4048},
   journal = {Journal of High Energy Astrophysics},
   title = {Tori sequences as remnants of multiple accreting periods of Kerr SMBHs},
   url = {https://www.sciencedirect.com/science/article/pii/S2214404817300289?via%3Dihub},
   volume = {17},
   year = {2018}
}

TY  - JOUR
ID  - 30100
AU  - Pugliese, Daniela - Stuchlík, Zdeněk
PY  - 2018
TI  - Tori sequences as remnants of multiple accreting periods of Kerr SMBHs
JF  - Journal of High Energy Astrophysics
VL  - 17
IS  - Marz
SP  - 1-37
EP  - 1-37
SN  - 22144048
KW  - accretion disks
KW  - accretion
KW  - jets
KW  - black hole physics
KW  - hydrodynamics
UR  - https://www.sciencedirect.com/science/article/pii/S2214404817300289?via%3Dihub
L2  - https://www.sciencedirect.com/science/article/pii/S2214404817300289?via%3Dihub
N2  - Super-massive black holes (SMBHs) hosted in active galactic nuclei (AGNs) can be characterized by multi-accreting periods as the attractors interact with the environment during their life-time. These multi-accretion episodes should leave traces in the matter orbiting the attractor. Counterrotating and even misaligned structures orbiting around the SMBHs would be consequences of these episodes. Our task in this work is to consider situations where such accretions occur and to trace their remnants represented by several toroidal accreting fluids, corotating or counterrotating relative to the central Kerr attractor, and created in various regimes during the evolution of matter configurations around SMBHs. We focus particularly on the emergence of matter instabilities, i.e., tori collisions, accretion onto the central Kerr black hole, or creation of jet-like structures (proto-jets). Each orbiting configuration is governed by the general relativistic hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluid. We prove that sequences of configurations and hot points, where an instability occurs, characterize the Kerr SMBHs, depending mainly on their spin-mass ratios. The occurrence of tori accretion or collision are strongly constrained by the fluid rotation with respect to the central black hole and the relative rotation with respect to each other. Our investigation provides characteristic of attractors where traces of multi-accreting episodes can be found and observed.
ER  - 

PUGLIESE, Daniela a Zdeněk STUCHLÍK. Tori sequences as remnants of multiple accreting periods of Kerr SMBHs. \textit{Journal of High Energy Astrophysics}. roč.~17, Marz, s.~1-37. ISSN~2214-4048. doi:10.1016/j.jheap.2017.11.001. 2018.