2005
The latitudinal and radial geodetical motion in Kerr-de Sitter spacetime
STUCHLÍK, Zdeněk and Kamila TRUPAROVÁ PLŠKOVÁBasic information
Original name
The latitudinal and radial geodetical motion in Kerr-de Sitter spacetime
Authors
STUCHLÍK, Zdeněk and Kamila TRUPAROVÁ PLŠKOVÁ
Edition
Opava, Proceedings of RAGtime 6/7: Workshops on black holes and neutron stars, p. 339-356, 17 pp. 2005
Publisher
Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Language
English
Type of outcome
Proceedings paper
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
is not subject to a state or trade secret
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
80-7248-334-X
Keywords in English
Kerr-de Sitter spacetime, geodetical motion, cosmological constant
Tags
International impact
Links
MSM4781305903, plan (intention).
Changed: 18/12/2020 09:40, Mgr. Pavlína Jalůvková
Abstract
In the original language
The discussion of the latitudinal and radial photon motion in the Kerr-de Sitter (KdS) spacetime is examined by using the "Chinese boxes'' technique. Only the case with a positive cosmological constant is considered. The latitudinal motion is discussed by using a new motion constant $Q$ vanishing for motion in the equatorial plane. This will be more comfortable for the next discussion of the photon off-equatorial motion in KdS spacetime. For the radial motion an "effective potential'' governing the photon radial motion is used, circular photon orbits are determined and their stability is discussed.