Analysis of the Geodesic Motions of Massive Particles in Kerr–Sen–AdS₄ Spacetime

Abstract

We consider geodesic motions in Kerr–Sen–AdS4 spacetime. We obtain equations of motion for light rays and test particles. Using parametric diagrams, we show some regions where radial and latitudinal geodesic motions are allowed. We analyze the impact of parameters related to the dilatonic scalar on the orbit and find that it will result in more rich and complex orbital types.

Keywords

• geodesic motion
• ISCO
• Kerr-Sen-AdS₄ black hole
• orbit type