HENSH, Sudipta, Ahmadjon ABDUJABBAROV, Jan SCHEE and Zdeněk STUCHLÍK. Gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma. European Physical Journal C. 2019, vol. 79, No 6, p. "533-1"-"533-14", 14 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-019-7034-7.
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Basic information
Original name Gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma
Authors HENSH, Sudipta (356 India, guarantor, belonging to the institution), Ahmadjon ABDUJABBAROV (860 Uzbekistan), Jan SCHEE (203 Czech Republic, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition European Physical Journal C, 2019, 1434-6044.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19240/19:A0000418
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1140/epjc/s10052-019-7034-7
UT WoS 000472517000003
Keywords in English Kehagias-Sfetsos compact object; gravitational lensing; plasma
Tags Erasmus, , GB14-37086G, RCTPA, RIVOK, SGS12-2019
Tags International impact, Reviewed
Links GB14-37086G, research and development project.
Changed by Changed by: RNDr. Jan Hladík, Ph.D., učo 25379. Changed: 20/3/2020 09:18.
Abstract
We study the optical properties of the Kehagias–Sfetsos (KS) compact objects, characterized by the “Hořava” parameter omega_(KS), in the presence of plasma, considering its homogeneous or power-law density distribution. The strong effects of both “Hořava” parameter omega_(KS) and plasma on the shadow cast by the KS compact objects are demonstrated. Using the weak field approximation, we investigate the gravitational lensing effect. Strong dependence of the deflection angle of the light on both the “Hořava” and plasma parameter is explicitly shown. The magnification of image source due to the weak gravitational lensing is given for both the homogeneous and inhomogeneous plasma.
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