Rotating charged black holes in EMS theory: shadow studies and
constraints from EHT observations

J 2024

Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations

YUNUSOV, Odil; Javlon RAYIMBAEV; Furkat SARIKULOV; Muhammad ZAHID; Ahmadjon ABDUJABBAROV et. al.

Basic information

Original name

Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations

Authors

YUNUSOV, Odil; Javlon RAYIMBAEV (860 Uzbekistan); Furkat SARIKULOV (860 Uzbekistan); Muhammad ZAHID; Ahmadjon ABDUJABBAROV (860 Uzbekistan) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

European Physical Journal C, New York (USA), SPRINGER, 2024, 1434-6044

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 4.800

RIV identification code

RIV/47813059:19630/24:A0000401

Organization unit

Institute of physics in Opava

DOI

https://doi.org/10.1140/epjc/s10052-024-13500-3

UT WoS

001383339200010

Keywords in English

telescope results VI.;parameter-estimation;accreation disks;gravity;fields

Abstract

In the original language

One of the possible ways to test gravity theories and get constraints on parameters of a gravity theory and a black hole is based on studies of black hole shadow applying Event Horizon Telescope (EHT) data from the shadow sizes of M87* and Sgr A*. In this sense, we study the shadow of rotating charged black holes in Einstein-Maxwell scalar (EMS) theory. First, we obtain a rotating EMS black hole solution and analyze the horizon properties. We derive the effective potential for the circular motion of photons along null geodesics around the rotating black hole and obtain the black hole shadow using celestial coordinates. The effects of the black charge and spin and EMS theory parameters on the shape of the black hole shadow, its radius, and distortion parameters are analyzed in detail. We have obtained upper and lower limits for spin and black hole charges of Sgr A* and M87* using their shadow size for various values of EMS parameters. Lastly, we computed and examined the standard shadow radius, equatorial, and polar quasinormal modes using the geometric-optic relationship between the parameters of the quasinormal mode and the conserved values along the geodesics.

Cite

YUNUSOV, Odil; Javlon RAYIMBAEV; Furkat SARIKULOV; Muhammad ZAHID; Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK. Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations. European Physical Journal C. New York (USA): SPRINGER, 2024, vol. 84, No 12, p. "1240-1"-"1240-17", 17 pp. ISSN 1434-6044. Available from: https://doi.org/10.1140/epjc/s10052-024-13500-3.

@article{83149,
   author = {Yunusov, Odil and Rayimbaev, Javlon and Sarikulov, Furkat and Zahid, Muhammad and Abdujabbarov, Ahmadjon and Stuchlík, Zdeněk},
   article_location = {New York (USA)},
   article_number = {12},
   doi = {https://doi.org/10.1140/epjc/s10052-024-13500-3},
   keywords = {telescope results VI.;parameter-estimation;accreation disks;gravity;fields},
   language = {eng},
   issn = {1434-6044},
   journal = {European Physical Journal C},
   title = {Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations},
   url = {https://link.springer.com/article/10.1140/epjc/s10052-024-13500-3},
   volume = {84},
   year = {2024}
}

TY  - JOUR
ID  - 83149
AU  - Yunusov, Odil - Rayimbaev, Javlon - Sarikulov, Furkat - Zahid, Muhammad - Abdujabbarov, Ahmadjon - Stuchlík, Zdeněk
PY  - 2024
TI  - Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations
JF  - European Physical Journal C
VL  - 84
IS  - 12
SP  - "1240-1"-"1240-17"
EP  - "1240-1"-"1240-17"
PB  - SPRINGER
SN  - 14346044
KW  - telescope results VI.;parameter-estimation;accreation disks;gravity;fields
UR  - https://link.springer.com/article/10.1140/epjc/s10052-024-13500-3
N2  - One of the possible ways to test gravity theories and get constraints on parameters of a gravity theory and a black hole is based on studies of black hole shadow applying Event Horizon Telescope (EHT) data from the shadow sizes of M87* and Sgr A*. In this sense, we study the shadow of rotating charged black holes in Einstein-Maxwell scalar (EMS) theory. First, we obtain a rotating EMS black hole solution and analyze the horizon properties. We derive the effective potential for the circular motion of photons along null geodesics around the rotating black hole and obtain the black hole shadow using celestial coordinates. The effects of the black charge and spin and EMS theory parameters on the shape of the black hole shadow, its radius, and distortion parameters are analyzed in detail. We have obtained upper and lower limits for spin and black hole charges of Sgr A* and M87* using their shadow size for various values of EMS parameters. Lastly, we computed and examined the standard shadow radius, equatorial, and polar quasinormal modes using the geometric-optic relationship between the parameters of the quasinormal mode and the conserved values along the geodesics.
ER  -

YUNUSOV, Odil; Javlon RAYIMBAEV; Furkat SARIKULOV; Muhammad ZAHID; Ahmadjon ABDUJABBAROV and Zdeněk STUCHLÍK. Rotating charged black holes in EMS theory: shadow studies and constraints from EHT observations. \textit{European Physical Journal C}. New York (USA): SPRINGER, 2024, vol.~84, No~12, p.~''1240-1''-''1240-17'', 17 pp. ISSN~1434-6044. Available from: https://doi.org/10.1140/epjc/s10052-024-13500-3.

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