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arXiv · 2002.04875

Black holes and naked singularities from Anton-Schmidt's fluids

Salvatore Capozziello·Rocco D'Agostino·Daniele Gregoris
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Abstract

Adopting the Tolman-Oppenheimer-Volkoff formalism, we propose a new analytical solution for a static and spherically symmetric black hole where the cosmological constant is generalized to a non-isotropic Anton-Schmidt fluid acting as a unified dark energy - dark matter source. Our novel result can describe a black hole in energetic equilibrium with the surrounding universe. We thus investigate the interplay between the mass of the black hole and the parameters of the Anton-Schmidt equation of state, and physically interpret the solution as a family of space-time metrics that may describe both Schwarzschild-de Sitter black holes and naked singularities. The result opens a new window for further constraining the physical properties of the cosmic fluid using the Event Horizon Telescope results, which complement the analysis relying on classical cosmological observations.

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Salvatore Capozziello, Rocco D'Agostino, Daniele Gregoris. 2020-02-12. Black holes and naked singularities from Anton-Schmidt's fluids. https://arxiv.org/abs/2002.04875

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