Optical effects related to Keplerian discs 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%2F14%3A%230005079" target="_blank" >RIV/47813059:19240/14:#0005079 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/0264-9381/31/19/195013/" target="_blank" >http://iopscience.iop.org/0264-9381/31/19/195013/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0264-9381/31/19/195013" target="_blank" >10.1088/0264-9381/31/19/195013</a>
Alternative languages
Result language
angličtina
Original language name
Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities
Original language description
We demonstrate possible optical signatures of the Kehagias-Sfetsos (KS) naked singularity spacetimes representing a spherically symmetric vacuum solution of the modified Horava gravity. In such spacetimes, accretion structures significantly different from those present in standard black hole spacetimes occur due to the 'antigravity' effect, which causes an internal static sphere surrounded by Keplerian discs. We focus our attention on the optical effects related to the Keplerian accretion discs, constructing the optical appearance of the Keplerian discs, the spectral continuum due to their thermal radiation, and the spectral profiled lines generated in the innermost parts of such discs. The KS naked singularity signature is strongly encoded in the characteristics of predicted optical effects, especially in cases where the spectral continuum and spectral lines are profiled by the strong gravity of the spacetimes due to the vanishing region of the angular velocity gradient influencing th
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>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Classical and Quantum Gravity
ISSN
0264-9381
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
19
Country of publishing house
GB - UNITED KINGDOM
Number of pages
50
Pages from-to
"195013 - 1"-"195013 - 50"
UT code for WoS article
000343411400013
EID of the result in the Scopus database
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