Weak gravitational lensing by stringy black holes

Wajiha Javed, Muhammad Bilal Khadim, Jameela Abbas, Ali Övgün

Research output: Contribution to journalArticlepeer-review

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In this paper, we discuss the weak gravitational lensing in the context of stringy black holes. Initially, we examine the deflection angle of photon by charged stringy black hole. For this desire, we compute the Gaussian optical curvature and implement the Gauss–Bonnet theorem to investigate the deflection angle for spherically balanced spacetime of stringy black hole. We also analyze the influence of plasma medium in the weak gravitational lensing for stringy black hole. Moreover, the graphical impact of impact parameter b , black hole charge Q on deflection angle by charged stringy black hole has been studied in plasma as well as non-plasma medium.

Original languageEnglish
Article number314
JournalEuropean Physical Journal Plus
Issue number3
StatePublished - 1 Mar 2020


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