Regular Article – Theoretical Physics
Weak gravitational lensing Schwarzschild-MOG black hole in plasma
Inha University in Tashkent, Ziyolilar 9, 100170, Tashkent, Uzbekistan
2 Akfa University, Kichik Halqa Yuli Street 17, 100095, Tashkent, Uzbekistan
3 Ulugh Beg Astronomical Institute, Astronomy St. 33, 100052, Tashkent, Uzbekistan
4 National University of Uzbekistan, Tashkent, Uzbekistan
5 Institute of Nuclear Physics, Ulugbek 1, 100214, Tashkent, Uzbekistan
6 Shanghai Astronomical Observatory, 80 Nandan Road, 200030, Shanghai, People’s Republic of China
7 Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kori Niyoziy, 39, 100000, Tashkent, Uzbekistan
Accepted: 24 January 2021
Published online: 3 February 2021
This paper is devoted to study weak gravitational lensing properties around black hole surrounded plasma medium in modified gravity (MOG). We have investigated the effects of the MOG-parametr and plasma medium on the deflection angle and total magnification of the images. we have presented the comparisons of the effects of the uniform plasma, singular isothermal sphere and non-singular isothermal sphere. We have also shown that the uniform plasma effects significantly stronger than the other models of plasma medium.Through the studies of the total magnifications of images of a remote source we have shown that the effects of the MOG parameter and plasma medium are similar and the increase of the MOG parameter and plasma frequency cause to increase the total magnification. Moreover, we have explored and analyzed how the MOG effects can reflect the plasma medium providing the same values of the total magnification of images.
© The Author(s) 2021
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