HLEDÍK, Stanislav, Martin KOLOŠ and Zdeněk STUCHLÍK. Test particle motion in brany black hole spacetimes with a nonzero cosmological constant. In Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars. Opava: Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky, 2007, p. 109-123. ISBN 978-80-7248-419-5.
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Basic information
Original name Test particle motion in brany black hole spacetimes with a nonzero cosmological constant
Authors HLEDÍK, Stanislav, Martin KOLOŠ and Zdeněk STUCHLÍK.
Edition Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 109-123, 15 pp. 2007.
Publisher Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Original 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 978-80-7248-419-5
Keywords in English Brany black hole, tidal charge, Kerr-Newman-(anti-)de Sitter, Reissner-Nordström-(anti-)de Sitter, black hole, test particle motion, cosmological constant
Tags RAGtime, sbornik, UF
Tags International impact
Links GD205/03/H144, research and development project. MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 8/12/2020 13:51.
Abstract
In the framework of the brany cosmology, the influence of the bulk spacetime on the black holes in the brane can be described by the so called tidal charge, which has a character similar to the charge parameter in the standard black-hole solutions, but can be both positive and negative. We discuss the influence of the tidal charge on the test particle and photon motion in the spherically symmetric spacetimes with a nonzero cosmological constant using the analysis realised in the case of Reissner-Nordström-(anti-)de Sitter spacetimes. We concentrate on the properties of circular geodesics as they play an important role in determining the brane properties of both thin and thick accretion discs. Some implications of the tidal charge influence are outlined.
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