Advances in Astrophysics

Download PDF (519.5 KB) PP. 95 - 102 Pub. Date: May 1, 2017

DOI: 10.22606/adap.2017.22004

• H. Shanjit^*
  Department of Physics, Rajiv Gandhi University, Rono Hills - 791112, Arunachal Pradesh, India
• K. Yugindro Singh
  Department of Physics, Manipur University, Imphal - 795003, Manipur, India

In this work, the geodesic equations of motion of a test particle in the Kerr-Newman (KN) anti de Sitter spacetimes are presented in the light of the Hamiltonian-Jacobi formalism. We have examined, in the frame of KN anti de Sitter spacetimes, the spherical and circular orbits that the test particle may describe in a rotating charged black hole, discarding the gravitational and electromagnetic radiation and found that bounded spherical and circular stable orbits can exist in the regions of 0 < r < r− in which r− is the inner event horizon of the black hole.

Kerr-Newman anti de Sitter spacetimes; geodesic equations; spherical and circular orbits; gravitational and electromagnetic radiation; inner event horizon; black hole.

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