Eur. Phys. J. Plus (2022) 137: 567
https://doi.org/10.1140/epjp/s13360-022-02780-x

Regular Article

Gravitational weak lensing of Schwarzschild-like black hole in presence of plasma

¹ Inha University in Tashkent, Ziyolilar 9, 100170, Tashkent, Uzbekistan
² Akfa University, Milliy Bog’ Street 264, 111221, Tashkent, Uzbekistan
³ Department of Physics, Zhejiang Normal University, 321004, Jinhua, China
⁴ National University of Uzbekistan, 100174, Tashkent, Uzbekistan
⁵ Ulugh Beg Astronomical Institute, Astronomy St 33, 100052, Tashkent, Uzbekistan
⁶ Tashkent University of Information Technologies named after Muhammad al Khwarizmi, Amir Temur 108, 100014, Tashkent, Uzbekistan
⁷ Shanghai Astronomical Observatory, 80 Nandan Road, 200030, Shanghai, China
⁸ Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kori Niyoziy 39, 100000, Tashkent, Uzbekistan
⁹ Institute of Nuclear Physics, Ulugbek Street, 100214, Tashkent, Uzbekistan

^a atamurotov@yahoo.com

Received: 9 March 2022
Accepted: 28 April 2022
Published online: 9 May 2022

Abstract

Gravitational weak lensing around a Schwarzschild-like black hole (BH) has been deeply studied in the presence of a plasma medium. The obtained results have shown that the effect of parameter a on the deflection angle of light rays around BH in Schwarzschild-like spacetime is perceptible. With an increase of parameter a, deflection angle of photon decreases, and the effect of plasma on deflection angle is opposite. The total magnification of the image source due to gravitational lensing has been also studied taking into account the effect of coupling parameter a in the presence of plasma around the black hole.