# Shadow Images of a Rotating Dyonic Black Hole with a Global Monopole Surrounded by Perfect Fluid

## TL;DR

This paper studies the shadow images of rotating dyonic black holes with a global monopole and perfect fluid, analyzing how different cosmic fluids and monopole parameters affect the black hole's silhouette and energy emission.

## Contribution

It extends previous work by including rotation, global monopoles, and perfect fluids, providing new insights into black hole shadows under these conditions.

## Key findings

- Global monopole and perfect fluid parameters deform black hole shadows.
- Dark matter, dust, and radiation influence shadow shapes.
- Energy emission rates depend on the surrounding fluid and monopole parameters.

## Abstract

In this paper we revisit and extend the prior work of Filho and Bezerra [Phys. Rev D, 64, 084009 (2001)] to rotating dyonic global monopoles in presence of a perfect fluid. We then show that the surface topology at the event horizon, related to the metric computed, is a 2- sphere using the Gauss-Bonnet theorem. By choosing $\omega=-1/3, 0, 1/3$ we investigate the effect of dark matter, dust, radiation on the silhouette of black hole. The presence of the global monopole parameter $\gamma$ and the perfect fluid parameters $\upsilon$, also deforms the shape of black hole's shadow, which has been depicted through graphical illustrations. In the end we analyse energy emission rate of rotating dyonic global monopole surrounded by perfect fluid with respect to parameters.