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@article{33506, 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 - 33506 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 - 2214-4048 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}. 2018, roč.~17, Marz, s.~1-37. ISSN~2214-4048. Dostupné z: https://dx.doi.org/10.1016/j.jheap.2017.11.001.
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