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SLANÝ, Petr and Zdeněk STUCHLÍK. Relativistic thick discs in the Kerr de Sitter backgrounds. Classical and Quantum Gravity. US - Spojené státy americké, 2005, vol. 22, No 17, p. 3623-3651, 28 pp. ISSN 0264-9381. Available from: https://dx.doi.org/10.1088/0264-9381/22/17/019.
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Basic information
Original name Relativistic thick discs in the Kerr de Sitter backgrounds
Authors SLANÝ, Petr and Zdeněk STUCHLÍK.
Edition Classical and Quantum Gravity, US - Spojené státy americké, 2005, 0264-9381.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1088/0264-9381/22/17/019
UT WoS 000232133100020
Keywords in English Relativistic, thick discs, Kerr de Sitter backgrounds, perfect fluid
Tags UF
Tags International impact, Reviewed
Links MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 18/12/2020 09:56.
Abstract
Perfect fluid tori with a uniform distribution of the specific angular momentum, l(r,theta) = const, orbiting the Kerr - de Sitter black holes or naked singularities are studied. It is well known that the structure of equipotential surfaces of such marginally stable tori reflects the basic properties of any tori with a general distribution of the specific angular momentum. Closed equipotential surfaces corresponding to stationary thick discs are allowed only in the spacetimes admitting stable circular geodesics. The last closed surface crosses itself in the cusp(s) enabling the outflow of matter from the torus due to the violation of hydrostatic equilibrium.
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