Precession of timelike bound orbits in Kerr spacetime View Full Text


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Article Info

DATE

2021-03-02

AUTHORS

Parth Bambhaniya, Divyesh N. Solanki, Dipanjan Dey, Ashok B. Joshi, Pankaj S. Joshi, Vishva Patel

ABSTRACT

Astrometric observations of S-stars provide a unique opportunity to probe the nature of Sagittarius-A* (Sgr-A*). In view of this, it has become important to understand the nature and behavior of timelike bound trajectories of particles around a massive central object. It is known now that whereas the Schwarzschild black hole does not allow the negative precession for the S-stars, the naked singularity spacetimes can admit the positive as well as negative precession for the bound timelike orbits. In this context, we study the perihelion precession of a test particle in the Kerr spacetime geometry. Considering some approximations, we investigate whether the timelike bound orbits of a test particle in Kerr spacetime can have negative precession. In this paper, we only consider low eccentric timelike equatorial orbits. With these considerations, we find that in Kerr spacetimes, negative precession of timelike bound orbits is not allowed. More... »

PAGES

205

References to SciGraph publications

  • 2017-08-12. Self-gravitating fluid systems and galactic dark matter in GENERAL RELATIVITY AND GRAVITATION
  • 2015-10-29. Analytical Solutions for Geodesic Equation in Black Hole Spacetimes in 1ST KARL SCHWARZSCHILD MEETING ON GRAVITATIONAL PHYSICS
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