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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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