Energy extraction from Janis-Newman-Winicour naked singularity

Naked singularities form during the gravitational collapse of inhomogeneous matter clouds. The final nature of the singularity depends on the initial conditions of the matter properties and types of matter profiles. These naked singularities can also be divided into two types: null-like and timelike singularities. The spacelike singularity of the Schwarzschild black hole can be distinguished from the null and timelike naked singularity spacetimes. In light of this, we investigate the precession of timelike bound orbits in the null naked singularity spacetime, as well as tidal force effects and geodesic deviation features. As a result, we find that the orbital precession of the timelike bound orbits in null naked singularity spacetime could be distinguished from the Schwarzschild precession case. The radial component of the tidal force has an intriguing profile, whereas the angular component has a profile which is comparable to that of a Schwarzschild black hole scenario. The geodesic deviation equation is then solved numerically, yielding results that resemble a Schwarzschild black hole. These characteristic features can then be used to discern amongst these singularities.

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General properties of the Penrose process with neutral particles in the equatorial plane

Zaslavskii

2023

Phys. Rev. D

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Energy extraction from Janis-Newman-Winicour naked singularity

Cited by 7 publications

References 84 publications

Gravitational deflection of massive body around naked singularity

Gravitational deflection of massive body around naked singularity

Tidal force effects and bound orbits in null naked singularity spacetime

General properties of the Penrose process with neutral particles in the equatorial plane

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