KUČÁKOVÁ, Hana, Petr SLANÝ and Zdeněk STUCHLÍK. Equilibrium configurations of perfect fluid in Reissner-Nordström-de Sitter spacetimes. In Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars. Opava: Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky, 2007, p. 433-447, 14 pp. ISBN 978-80-7248-419-5.
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Basic information
Original name Equilibrium configurations of perfect fluid in Reissner-Nordström-de Sitter spacetimes
Authors KUČÁKOVÁ, Hana, Petr SLANÝ and Zdeněk STUCHLÍK.
Edition Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 433-447, 14 pp. 2007.
Publisher Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Philosophy and Science in Opava
ISBN 978-80-7248-419-5
Keywords in English perfect fluid, black hole, Reissner-Nordström-de Sitter spacetimes, naked singularity
Tags RAGtime, sbornik, UF
Tags International impact
Links LC06014, research and development project. MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 21/12/2020 11:14.
Abstract
Marginally stable perfect fluid tori with uniform distribution of specific angular momentum are determined in the Reissner-Nordström-de Sitter black-hole and naked singularity spacetimes. Perfect fluid toroidal configurations are allowed only in the spacetimes admitting existence of stable circular geodesics. The configurations with equipotential surfaces crossing itself in a cusp allow accretion (inner cusp) and/or excretion (outer cusp) of matter from the toroidal configuration. The classification ofthe Reissner-Nordström-de Sitter spacetimes according to the properties of the marginally stable tori is given.
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