TOSHMATOV, Bobir and Bobomurat AHMEDOV. Tidal forces in parametrized spacetime: Rezzolla-Zhidenko parametrization. Physical Review D. 2023, vol. 108, No 8, p. "084035-1"-"084035-13", 13 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.108.084035.
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Basic information
Original name Tidal forces in parametrized spacetime: Rezzolla-Zhidenko parametrization
Authors TOSHMATOV, Bobir (203 Czech Republic, belonging to the institution) and Bobomurat AHMEDOV (860 Uzbekistan).
Edition Physical Review D, 2023, 2470-0010.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/23:A0000305
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.108.084035
UT WoS 001098575900008
Keywords in English tidal forces ;spherically symmetric static parametrized black hole;eodesic deviation equations
Tags RIV24, UF
Tags International impact, Reviewed
Links EF18_053/0017871, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 14/2/2024 14:12.
Abstract
We investigate the tidal forces exerted by a spherically symmetric static parametrized black hole. Our analysis reveals that the radial and angular components of the tidal forces exerted by the black hole can exhibit both positive and negative values near the black hole, depending on matters of the spacetime parameters. Unlike the scenario with the Schwarzschild black hole, where the radial tidal force (angular tidal force) is always stretching (compressing) and becomes infinite at the center of the spacetime, the parametrized black hole allows for finite and compressing (stretching) forces within the event horizon. Additionally, we derive the geodesic deviation equations for a particle in free fall and proceed to solve them through numerical methods. Our analysis demonstrates that the spacetime parameters epsilon and a1 exhibit contrasting influences on the magnitudes of the physical quantities associated with tidal effects.
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