KOVÁŘ, Jiří and Zdeněk STUCHLÍK. Forces in Kerr space-times with a repulsive cosmological constant. International Journal of Modern Physics D. SG - Singapurská republika, 2006, vol. 21, 23&24, p. 4869-4897, 28 pp. ISSN 0218-2718. Available from: https://dx.doi.org/10.1142/S0217751X06032435.
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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
Original language English
Type of outcome Article in a journal
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
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).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 18/12/2020 10:50.
Abstract
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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