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Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14475
Title: Periastron shift for a spinning test particle around naked singularities
Authors: Mukherjee, Sajal
Keywords: Physics
Reissner-Nordström metric
Issue Date: Jun-2018
Publisher: APS
Abstract: In the present article, we investigate the Periastron precession for a spinning test particle moving in nearly circular orbits around naked singularities. We consider two well-known solutions that can produce a spacetime with naked singularity—(a) first, the Reissner-Nordström metric, which is a static charged solution with spherical symmetry, and (b) second, the stationary, axisymmetric Kerr metric. For simplicity, we only consider the motion confined on the equatorial plane in both these cases and solve exactly the Mathisson-Papapetrou equations. In addition, we analytically compute the Periastron precession within the framework of linear spin approximation. The inclusion of the spin parameter modifies the results with nonspinning particles and also reflects some interesting properties of the naked geometries. Furthermore, we carried out a numerical approach without any assumptions to probe the large order spin values. The implication of the spin-curvature coupling in connection with the naked geometries is also discussed.
URI: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.124006
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14475
Appears in Collections:Department of Physics

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