Weak Deflection Angle and Greybody Bound of Magnetized Regular Black Hole

Abstract

In this paper, we examine the weak deflection angle and greybody bound for magnetized regular black hole.  For this purpose, we apply the Gauss-Bonnet theorem on the black hole and obtain the deflection angle in plasma and non-plasma mediums.  Moreover, we investigate graphically the effect of impact parameter on the deflection angle for regular black hole in both mediums. We examine that deflection angle goes to infinity when the impact parameter approaches to zero. We also observe that deflection angle shows negative behaviour at $q=0.6$ and $q=2.09$ but at $0.6<q<2.09$, angle shows the positive behaviour. Furthermore, we study the rigorous bound phenomenon of the greybody factor in the background for magnetized regular black hole. Later, we analyze the graphical behaviour of greybody bound with respect to different values of $\omega$ and observe that at small values of $\omega$, bound is increasing but for large values, bound is decreasing. Afterthat we examine that when we put $G=1$, $l=0$ and $q=0$, then all results for magnetized regular black hole solution reduces into results of the Schwarzschild black hole solution.

arXiv comment18 pages. Accepted for publication in Universe "the Special Issue Dark Matter and Dark Energy: Particle Physics, Cosmology, and Experimental Searches" (https://www.mdpi.com/2218-1997/8/5/262)

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