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
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
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).
Změněno: 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.