PUGLIESE, Daniela and Zdeněk STUCHLÍK. Proto-jet configurations in RADs orbiting a Kerr SMBH: symmetries and limiting surfaces. Classical and Quantum Gravity. 2018, vol. 35, No 10, p. "105005-1"-"105005-21", 21 pp. ISSN 0264-9381. Available from: https://dx.doi.org/10.1088/1361-6382/aab99d.
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Basic information
Original name Proto-jet configurations in RADs orbiting a Kerr SMBH: symmetries and limiting surfaces
Authors PUGLIESE, Daniela (380 Italy, guarantor, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition Classical and Quantum Gravity, 2018, 0264-9381.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19240/18:A0000392
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1088/1361-6382/aab99d
UT WoS 000429839500001
Keywords in English black hole physics; jets; gravitation; hydrodynamics; accretion; accretion disks; galaxies: active; galaxies: jets
Tags International impact, Reviewed
Links GB14-37086G, research and development project. GJ16-03564Y, research and development project.
Changed by Changed by: RNDr. Jan Hladík, Ph.D., učo 25379. Changed: 7/4/2019 00:59.
Abstract
Ringed accretion disks (RADs) are agglomerations of perfect-fluid tori orbiting around a single central attractor that could arise during complex matter inflows in active galactic nuclei. We focus our analysis to axi-symmetric accretion tori orbiting in the equatorial plane of a supermassive Kerr black hole; equilibrium configurations, possible instabilities, and evolutionary sequences of RADs were discussed in our previous works. In the present work we discuss special instabilities related to open equipotential surfaces governing the material funnels emerging at various regions of the RADs, being located between two or more individual toroidal configurations of the agglomerate. These open structures could be associated to proto-jets. Boundary limiting surfaces are highlighted, connecting the emergency of the jet-like instabilities with the black hole dimensionless spin. These instabilities are observationally significant for active galactic nuclei, being related to outflows of matter in jets emerging from more than one torus of RADs orbiting around supermassive black holes.
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