PUGLIESE, Daniela and Zdeněk STUCHLÍK. Embedded BHs and multipole globules: clustered misaligned thick accretion disks around static SMBHs. Classical and Quantum Gravity. 2020, vol. 37, No 19, p. "195025-1"-"195025-61", 61 pp. ISSN 0264-9381. Available from: https://dx.doi.org/10.1088/1361-6382/ab995b.
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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
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/47813059:19630/20:A0000013
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1088/1361-6382/ab995b
UT WoS 000570862200001
Keywords in English black hole; geometrically thick disks; hydrodynamic models; misaligned (inclined) tori
Tags FÚ, FÚ2020, GA19-03950S, RIV21
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 19/4/2021 12:57.
Abstract
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.
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