Detailed Information on Publication Record
2017
Gravitational lensing by regular black holes surrounded by plasma
ABDUJABBAROV, Ahmadjon, Bobir TOSHMATOV, Jan SCHEE, Zdeněk STUCHLÍK, Bobomurat AHMEDOV et. al.Basic information
Original name
Gravitational lensing by regular black holes surrounded by plasma
Authors
ABDUJABBAROV, Ahmadjon (860 Uzbekistan), Bobir TOSHMATOV (860 Uzbekistan, guarantor, belonging to the institution), Jan SCHEE (203 Czech Republic, belonging to the institution), Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution) and Bobomurat AHMEDOV (860 Uzbekistan)
Edition
International Journal of Modern Physics D, 2017, 0218-2718
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
Singapore
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19240/17:A0000023
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000399981000012
Keywords in English
regular black hole; shadow of black hole; plasma around black hole
Tags
International impact, Reviewed
Links
GB14-37086G, research and development project.
Změněno: 5/4/2018 16:12, RNDr. Jan Hladík, Ph.D.
Abstract
V originále
In the weak field approximation, we study the gravitational lensing near the regular Bardeen, Hayward and Ayon-Beato-Garcia (ABG) black holes surrounded by plasma. The exact expressions for the deflection angle of the photons due to the effect of the gravitational field and the plasma have been obtained. The analysis of the image source brightness magnification in the background spacetimes of (i) Bardeen, (ii) Hayward and (iii) ABG regular black holes have shown that the increase of the corresponding charge of regular black hole causes the increase in the magnification of the source image. In addition to the primary ring, one may observe the secondary ring with smaller magnification. The influence of the plasma with (i) constant and (ii) radial power law electron density to the magnification of the source image has been studied.