J
2005
Relativistic thick discs in the Kerr de Sitter backgrounds
SLANÝ, Petr and Zdeněk STUCHLÍK
Basic information
Original name
Relativistic thick discs in the Kerr de Sitter backgrounds
Edition
Classical and Quantum Gravity, US - Spojené státy americké, 2005, 0264-9381
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
Keywords in English
Relativistic, thick discs, Kerr de Sitter backgrounds, perfect fluid
Tags
International impact, Reviewed
Links
MSM4781305903, plan (intention).
V originále
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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