Rotating black hole mimicker surrounded by the string cloud

Abstract

Traversable wormholes and regular black holes usually represent completely different scenarios. But in the black bounce spacetime they can be described by a same line element, which is very attractive. Furthermore, the black hole photos taken by EHT show that black holes have spin, so spin is an indispensable intrinsic property of black holes in the actual universe. In this work, we derive a rotating black hole mimicker surrounded by the string cloud (SC), which can be interpolated to represent regular black hole spacetime and traversable wormhole spacetime. We investigate the effect of the spin $a$ and SC parameter $L$ on the observables (shadow radius $R_s$ and distortion ${\delta }_s$) and energy emission rate of the black hole mimicker surrounded by the SC. We find that shadow for this spacetime is very sensitive to the $L$, i.e., the SC parameter can significantly increase the boundary of the shadow.

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Cited by in corpus (12)

• Exploring antisymmetric tensor effects on black hole shadows and quasinormal frequencies
• Thermodynamics of a newly constructed black hole coupled with nonlinear electrodynamics and cloud of strings
• Signatures of the accelerating black holes with a cosmological constant from the ${\text{Sgr A}}^{\star }$ and ${\text{M87}}^{\star }$ shadow prospects
• Photon orbits and phase transition for Letelier AdS black holes immersed in perfect fluid dark matter
• Modeling the black holes surrounded by a dark matter halo in the galactic center of M87
• Schwarzschild black hole surrounded by a cloud of strings in the background of perfect fluid dark matter
• Probing the black holes in a dark matter halo of M87 using gravitational wave echoes
• Regular Black Hole Models in the Transition from Baryonic Matter to Quark Matter
• Shadow of Kerr black hole surrounded by a cloud of strings in Rastall gravity and constraints from M87*
• Energy conditions in static, spherically symmetric spacetimes and effective geometries
• Some perspective of thermodynamical and optical properties of black holes in Maxwell-dilaton-dRGT-like massive gravity
• Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties