J 2020

Embedded BHs and multipole globules: clustered misaligned thick accretion disks around static SMBHs

PUGLIESE, Daniela and Zdeněk STUCHLÍK

Basic information

Original name

Embedded BHs and multipole globules: clustered misaligned thick accretion disks around static SMBHs

Authors

PUGLIESE, Daniela (380 Italy, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

Classical and Quantum Gravity, 2020, 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/47813059:19630/20:A0000013

Organization unit

Institute of physics in Opava

UT WoS

000570862200001

Keywords in English

black hole; geometrically thick disks; hydrodynamic models; misaligned (inclined) tori

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 19/4/2021 12:57, Mgr. Pavlína Jalůvková

Abstract

V originále

We investigate clusters of misaligned (inclined) tori orbiting a central static Schwarzschild black hole. To this purpose we considered a set of geometrically thick, pressure supported, perfect fluid tori analyzing purely hydrodynamic models. We study the tori collision emergence and, consequently, the stability properties of the aggregates composed by tori with different inclination angles relative to a fixed distant observer. The aggregate of tilted tori is modeled as a single orbiting configuration, by introducing a leading function governing the distribution of toroids around the black hole attractor. Eventually the tori agglomerate can be seen, depending on the tori thickness, as a (multipole) gobules of orbiting matter, with different toroidal spin orientations , covering the embedded central black hole. These systems are shown to include tori with emerging instability phase related to accretion onto the central black hole. Therefore we provide an evaluation of quantities related to tori energetics such as the mass-flux, the enthalpy-flux, and the flux thickness depending on the model parameters for polytropic fluids. Consequently this analysis places constraints on the existence and properties of tilted tori and aggregate of misaligned disks. Some notes are included on aggregates including proto-jets, represented by open cusped solutions associated to the geometrically thick tori.