J 2018

Proto-jet configurations in RADs orbiting a Kerr SMBH: symmetries and limiting surfaces

PUGLIESE, Daniela and Zdeněk STUCHLÍK

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19240/18:A0000392

Organization unit

Faculty of Philosophy and Science in Opava

DOI

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.
Změněno: 7/4/2019 00:59, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

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.