# Shadows cast by a class of rotating black bounces with an anisotropic fluid

## TL;DR

This paper introduces a new family of rotating black bounce spacetimes with anisotropic fluids, analyzes their properties, and determines their photon shadows, highlighting features that differentiate them from existing models.

## Contribution

The work develops a novel class of rotating black bounces with anisotropic fluids using a modified Newman-Janis algorithm, and studies their shadows and geodesics.

## Key findings

- Photon geodesics admit separation of Hamilton-Jacobi equation.
- The shape of the black hole shadow depends on model parameters.
- Distinct traits differentiate these spacetimes from similar models.

## Abstract

In this work, we introduce a family of rotating black bounces with an anisotropic fluid obtained by using a modified Newman-Janis algorithm. We analyze the main features of these spacetimes and obtain the geodesics for photons, which admit the separation of the Hamilton-Jacobi equation. We then determine the shape of the shadow in terms of the parameters of the model. We present some relevant examples that exhibit some traits that distinguish these spacetimes from other related ones appearing in the literature.