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arXiv · 2007.09058

Cosmological Constant Effect on Charged and Rotating Black Hole Shadows

A. Belhaj·M. Benali·A. El Balali·W. El Hadri·H. El Moumni
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Abstract

Motivated by recent astrophysical observations, we investigate the shadow behaviors of four dimensional charged rotating black holes with a cosmological constant. This study is made in terms of a reduced moduli space parameterized by the charge and the rotation parameters. For fixed observers, we analyse in some details the shadow behaviors and the corresponding naked singularities of Kerr-Newman and Kerr-Sen four-dimensional black holes in Anti de Sitter backgrounds. Then, a comparative discussion is provided by computing the geometrical observables and the energy emission rate.

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A. Belhaj, M. Benali, A. El Balali, W. El Hadri, H. El Moumni. 2020-07-17. Cosmological Constant Effect on Charged and Rotating Black Hole Shadows. https://arxiv.org/abs/2007.09058

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