Perfect fluid tori orbiting Kehagias-Sfetsos naked singularities
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F15%3A%230005471" target="_blank" >RIV/47813059:19240/15:#0005471 - isvavai.cz</a>
Result on the web
<a href="http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-015-3663-7" target="_blank" >http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-015-3663-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-015-3663-7" target="_blank" >10.1140/epjc/s10052-015-3663-7</a>
Alternative languages
Result language
angličtina
Original language name
Perfect fluid tori orbiting Kehagias-Sfetsos naked singularities
Original language description
We construct perfect fluid tori in the field of the Kehagias-Sfetsos (K-S) naked singularities. These are spherically symmetric vacuum solutions of the modified Horava quantum gravity, characterized by a dimensionless parameter omega M^2, combining the gravitational mass parameter M of the spacetime with the Horava parameter., reflecting the role of the quantum corrections. In dependence on the value of omega M^2, the K-S naked singularities demonstrate a variety of qualitatively different behavior of their circular geodesics that is fully reflected in the properties of the toroidal structures, demonstrating clear distinction to the properties of the torii in the Schwarzschild spacetimes. In all of the K-S naked singularity spacetimes the tori are located above an "antigravity" sphere where matter can stay in a stable equilibrium position, which is relevant for the stability of the orbiting fluid toroidal accretion structures. The signature of the K-S naked singularity is given by the
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
The European Physical Journal C
ISSN
1434-6044
e-ISSN
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Volume of the periodical
75
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
31
Pages from-to
"451-1"-"451-31"
UT code for WoS article
000361822200004
EID of the result in the Scopus database
2-s2.0-84942774406