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

Authors

Edition

Classical and Quantum Gravity, US - Spojené státy americké, 2005, 0264-9381

Other information

Language

English

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

DOI

UT WoS

000232133100020

Keywords in English

Relativistic, thick discs, Kerr de Sitter backgrounds, perfect fluid

Tags

Tags

International impact, Reviewed

Links

MSM4781305903, plan (intention).
Změněno: 18/12/2020 09:56, Mgr. Pavlína Jalůvková

Abstract

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.