Detailed Information on Publication Record
2007
Equilibrium configurations of perfect fluid in Reissner-Nordström-de Sitter spacetimes
KUČÁKOVÁ, Hana, Petr SLANÝ and Zdeněk STUCHLÍKBasic information
Original name
Equilibrium configurations of perfect fluid in Reissner-Nordström-de Sitter spacetimes
Authors
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
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
International impact
Links
LC06014, research and development project. MSM4781305903, plan (intention).
Changed: 21/12/2020 11:14, Mgr. Pavlína Jalůvková
Abstract
V originále
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.