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.

References in corpus (12)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• Rotating regular black holes
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• Generating rotating regular black hole solutions without complexification
• First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration
• Black hole shadow in a general rotating spacetime obtained through Newman-Janis algorithm
• Weak gravitational lensing of regular black holes with cosmic strings using the Gauss-Bonnet theorem
• No-Hair Theorem in the Wake of Event Horizon Telescope
• Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit
• Testing Rotating Regular Metrics with EHT Results of Sgr A*
• Clouds of strings in third-order Lovelock gravity
• Weak deflection angle of black-bounce traversable wormholes using Gauss-Bonnet theorem in the dark matter medium

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