J 2006

Forces in Kerr space-times with a repulsive cosmological constant

KOVÁŘ, Jiří and Zdeněk STUCHLÍK

Basic information

Original name

Forces in Kerr space-times with a repulsive cosmological constant

Authors

KOVÁŘ, Jiří and Zdeněk STUCHLÍK

Edition

International Journal of Modern Physics D, SG - Singapurská republika, 2006, 0218-2718

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

http://dx.doi.org/10.1142/S0217751X06032435

UT WoS

000241596100007

Keywords in English

Kerr de Sitter spacetimes, gravitational force, centrifugal force

Tags

UF

Tags

International impact, Reviewed

Links

MSM4781305903, plan (intention).
Změněno: 18/12/2020 10:50, Mgr. Pavlína Jalůvková

Abstract

V originále

Forces defined in the framework of optical reference geometry are introduced in the case of stationary and axially symmetric Kerr black hole and naked-singularity space?times with a repulsive cosmological constant. Properties of the forces acting on testparticles moving along circular orbits in the equatorial plane are discussed, whereas it is shown where the gravitational force vanishes and changes its orientation and where the centrifugal force vanishes and changes its orientation independently of the velocity of test particles related to the optical geometry; the Coriolis force does not vanish for the velocity being nonzero. The space?times are classified according to the number of circular orbits where the gravitational and centrifugal forces vanish.
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