Test particle motion along equatorial circular orbits in the revisited Kerr-de Sitter spacetime

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F23%3AA0000286" target="_blank" >RIV/47813059:19630/23:A0000286 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.084026" target="_blank" >https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.084026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.108.084026" target="_blank" >10.1103/PhysRevD.108.084026</a>

Result language
angličtina
Original language name
Test particle motion along equatorial circular orbits in the revisited Kerr-de Sitter spacetime
Original language description
Both circular and epicyclic motion of test particles along equatorial circular orbits in the revisited Kerrde Sitter spacetime are analyzed. We present relations for specific energy, specific angular momentum, and Keplerian angular velocity of particles on equatorial circular orbits, and discuss criteria for the existence and stability of such orbits giving limits on spacetime parameters. Finally, we discuss the epicyclic motion along equatorial circular orbits obtaining relations for radial and vertical epicyclic frequencies. The results are compared with those for standard Kerr-de Sitter geometry.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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