Strong gravitational lensing around Kehagias-Sfetsos compact
objects surrounded by plasma

J 2022

Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma

HENSH, Sudipta; Jan SCHEE; Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK

Basic information

Original name

Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma

Authors

HENSH, Sudipta (356 India, belonging to the institution); Jan SCHEE (203 Czech Republic, belonging to the institution); Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

European Physical Journal Plus, DE - Spolková republika Německo, 2022, 2190-5444

Other information

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

References:

URL

Impact factor

Impact factor: 3.400

RIV identification code

RIV/47813059:19630/22:A0000188

Organization unit

Institute of physics in Opava

DOI

https://doi.org/10.1140/epjp/s13360-022-02454-8

UT WoS

000757841600002

EID Scopus

2-s2.0-85125317903

Keywords in English

Horava gravity;Kehagias-Sfetsos black holes;semi-analytical Bozza method

Links

GA19-03950S, research and development project.

Changed: 1/2/2023 11:46, Mgr. Pavlína Jalůvková

Abstract

In the original language

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.

Cite

HENSH, Sudipta; Jan SCHEE; Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK. Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma. European Physical Journal Plus. DE - Spolková republika Německo, 2022, vol. 137, No 2, p. "242-1"-"242-9", 9 pp. ISSN 2190-5444. Available from: https://doi.org/10.1140/epjp/s13360-022-02454-8.

@article{65951,
   author = {Hensh, Sudipta and Schee, Jan and Abdujabbarov, Ahmadjon and Stuchlík, Zdeněk},
   article_location = {DE - Spolková republika Německo},
   article_number = {2},
   doi = {https://doi.org/10.1140/epjp/s13360-022-02454-8},
   keywords = {Horava gravity;Kehagias-Sfetsos black holes;semi-analytical Bozza method},
   language = {eng},
   issn = {2190-5444},
   journal = {European Physical Journal Plus},
   title = {Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma},
   url = {https://link.springer.com/article/10.1140/epjp/s13360-022-02454-8},
   volume = {137},
   year = {2022}
}

TY  - JOUR
ID  - 65951
AU  - Hensh, Sudipta - Schee, Jan - Abdujabbarov, Ahmadjon - Stuchlík, Zdeněk
PY  - 2022
TI  - Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma
JF  - European Physical Journal Plus
VL  - 137
IS  - 2
SP  - "242-1"-"242-9"
EP  - "242-1"-"242-9"
SN  - 21905444
KW  - Horava gravity;Kehagias-Sfetsos black holes;semi-analytical Bozza method
UR  - https://link.springer.com/article/10.1140/epjp/s13360-022-02454-8
N2  - 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.
ER  -

HENSH, Sudipta; Jan SCHEE; Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK. Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma. \textit{European Physical Journal Plus}. DE - Spolková republika Německo, 2022, vol.~137, No~2, p.~''242-1''-''242-9'', 9 pp. ISSN~2190-5444. Available from: https://doi.org/10.1140/epjp/s13360-022-02454-8.

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