Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F22%3AA0000188" target="_blank" >RIV/47813059:19630/22:A0000188 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1140/epjp/s13360-022-02454-8" target="_blank" >https://link.springer.com/article/10.1140/epjp/s13360-022-02454-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjp/s13360-022-02454-8" target="_blank" >10.1140/epjp/s13360-022-02454-8</a>
Alternative languages
Result language
angličtina
Original language name
Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma
Original language description
We present the analysis how Horava gravity and plasma influence the strong lensing phenomena around Kehagias-Sfetsos (KS) black holes. Using the semi-analytical Bozza method of strong lensing limit, we determine the multiple images, namely their separation S, and magnification R. We apply our calculations to the case of supermassive black hole having mass M = 6.5x10(9)M(circle dot) and being at distance d(0) = 16.8Mpc from observer corresponding to those observed in M87. We show that the sensitivity of image magnification, image separation, and shadow angular size on KS parameter omega and plasma parameter k are of order from 1 to 10% for R and 16% for S.
Czech name
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Czech description
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Classification
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)
Result continuities
Project
<a href="/en/project/GA19-03950S" target="_blank" >GA19-03950S: Testing strong gravity via black holes</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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal Plus
ISSN
2190-5444
e-ISSN
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Volume of the periodical
137
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
„242-1“-„242-9“
UT code for WoS article
000757841600002
EID of the result in the Scopus database
2-s2.0-85125317903