Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Bounding Greybody and Deflection Angle of Improved Schwarzschild Black Hole

Version 1 : Received: 12 November 2021 / Approved: 15 November 2021 / Online: 15 November 2021 (19:36:28 CET)

A peer-reviewed article of this Preprint also exists.

Journal reference: New Astronomy 2022, 101827
DOI: 10.1016/j.newast.2022.101827


We explore the deflection angle in the framework of improved Schwarzschild Black hole utilizing the most advance geometrical path adopted by Gibbon-Werner. To investigate deflection angle of the photon ray by weak gravitational lensing for this black hole, we derive the optical curvature and perform the application of Gauss-Bonnet theorem on the optical metric. Moreover, we study the impacts of the plasma medium in context of the weak gravitational lensing in relate to this black hole. Further, we also study the graphical analysis of the deflection angle in both the plasma and non-plasma mediums. Also, we find the rigorous bound base upon the greybody factor for improved Schwarzschild black hole. A while later, we contrast our conclusions about deflection angle with the deflection angles of Schwarzschild black hole within plasma and non-plasma mediums.


General Relativity; Improved Schwarzschild Black hole; Plasma medium; Gauss-Bonnet theorem; Non plasma medium; Hawking radiation; Greybody Factor.


PHYSICAL SCIENCES, General & Theoretical Physics

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