2012
Equilibrium Configurations of Perfect Fluid in Reissner-Nordström-(Anti-)de Sitter Spacetimes
KUČÁKOVÁ, Hana; Petr SLANÝ and Zdeněk STUCHLÍKBasic information
Original name
Equilibrium Configurations of Perfect Fluid in Reissner-Nordström-(Anti-)de Sitter Spacetimes
Authors
Edition
Singapore, The Twelfth Marcel Grossmann Meeting on General Relativity, p. 1914-1916, 3 pp. 2012
Publisher
World Scientific Publishing Co. Pte. Ltd.
Other information
Language
English
Type of outcome
Proceedings paper
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
ISBN
978-981-4374-51-4
Keywords in English
Black holes; Naked singularity; Perfect fluid; Toroidal configurations
Changed: 14/1/2021 10:02, Mgr. Pavlína Jalůvková
Abstract
In the original language
Marginally stable perfect fluid tori with uniform distribution of specific angulat momentum are determined in the Reissner-Nordström-(anti-)de Sitter black-hole and naked singularity spacetimes. Toroidal configurations are allowed only in the spacetimesadmitting existence of stable circular geodesics. The configurations with the equipotential surfaces crossing itself in a cusp allow accretion (inner cusp) of matter from the toroidal configuration.