KOVÁŘ, Jiří and Zdeněk STUCHLÍK. Properties of pseudo-Newtonian gravitational potential in Schwarzschild-de Sitter spacetimes. 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. 417-431, 14 pp. ISBN 978-80-7248-419-5.
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Basic information
Original name Properties of pseudo-Newtonian gravitational potential in Schwarzschild-de Sitter spacetimes
Authors KOVÁŘ, Jiří and Zdeněk STUCHLÍK.
Edition Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 417-431, 14 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
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 Schwarzschild-de Sitter geometry, pseudo-Newtonian gravitational potential, cosmological constant, black hole
Tags RAGtime, sbornik, UF
Tags International impact
Links GA202/06/0041, research and development project. MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 18/12/2020 11:28.
Abstract
We introduce the gravitational potential for the pseudo-Newtonian description of the gravitational field around static and spherically symmetric black holes in the universe with the repulsive cosmological constant, described in terms of the general relativistic approach by the Schwarzschild{de Sitter geometry. In order to demonstrate the accuracy of the pseudo-Newtonian approach and its possible applications, we construct the effective potential for a test particle motion and compare its behaviour withits general relativistic counterpart. Our results indicate that the pseudo-Newtonian potential could be useful in applications of developed Newtonian theories of accretion disks in astrophysically interesting situations in large galactic structures for spacetimes with the cosmological parameter y = Lambda*M^2/3 <= 10^-6.
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