# Strong lensing and Observables around 5D Myers-Perry black hole spacetime

## TL;DR

This paper investigates the behavior of light and photon trajectories around a five-dimensional Myers-Perry black hole, highlighting differences from four-dimensional Kerr black holes due to extra spin parameters.

## Contribution

It provides a detailed analysis of photon motion, frequency shifts, and deflection angles in 5D Myers-Perry spacetime, emphasizing the impact of multiple spin parameters.

## Key findings

- Photon frequency shift depends on black hole spin.
- Deflection angle behavior differs from 4D Kerr black holes.
- Strong deflection coefficients vary with spin parameters.

## Abstract

We study the motion of massless test particles in a five dimensional (5D) Myers-Perry black hole spacetime with two spin parameters. The behaviour of the effective potential in view of different values of black hole parameters is discussed in the equatorial plane. The frequency shift of photons is calculated which is found to depend on the spin parameter of black hole and the observed redshift is discussed accordingly. The deflection angle and the strong deflection limit coefficients are also calculated and their behaviour with the spin parameters is analysed in detail. It is observed that the behaviour of both deflection angle and strong field coefficient differs from Kerr black hole spacetime in four dimensions (4D) in General Relativity (GR) which is mainly due to the presence of two spin parameters in higher dimension.