Detailed Information on Publication Record
2018
Tori sequences as remnants of multiple accreting periods of Kerr SMBHs
PUGLIESE, Daniela and Zdeněk STUCHLÍKBasic information
Original name
Tori sequences as remnants of multiple accreting periods of Kerr SMBHs
Authors
PUGLIESE, Daniela (380 Italy, guarantor, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)
Edition
Journal of High Energy Astrophysics, 2018, 2214-4048
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19240/18:A0000274
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000425895700001
Keywords in English
accretion disks; accretion; jets; black hole physics; hydrodynamics
Tags
International impact, Reviewed
Links
GB14-37086G, research and development project. GJ16-03564Y, research and development project.
Změněno: 4/4/2019 12:50, RNDr. Jan Hladík, Ph.D.
Abstract
V originále
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.