Equatorial Circular Orbits in the Kerr-Newman-de Sitter Spacetimes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004536" target="_blank" >RIV/47813059:19240/12:#0004536 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Equatorial Circular Orbits in the Kerr-Newman-de Sitter Spacetimes
Original language description
We present influence of cosmological constant on the character of geodesical equatorial circular orbits in the rotating and charged Kerr-Newman black-hole and naked singularity spacetimes. Conditions for the existence of geodesics are determined. Significant limits such as static radius and circular orbits are presented. In the Kerr-Newman-de Sitter spacetime, the existence of two static radii implies different situation in both plus- and minus-family circular orbits in comparison with the Kerr-de Sitter spacetime. Especially, in the naked singularity case, existence of so called plus-family orbits is now restricted by the rotational parameter, minus-family orbits exists not only between the outer static radius and minus-family circular photon orbit but also between the inner static radius and minus-family circular photon orbit.
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The Twelfth Marcel Grossmann Meeting on General Relativity
ISBN
978-981-4374-51-4
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
1917-1919
Publisher name
World Scientific Publishing Co. Pte. Ltd.
Place of publication
Singapore
Event location
Paris
Event date
Jun 12, 2009
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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