Regular Article - Theoretical Physics
Precessing and periodic motions around a black-bounce/traversable wormhole
School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China
2 Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education, Nanjing, 210023, China
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Accepted: 11 November 2020
Published online: 19 November 2020
We investigate precessing and periodic geodesic motions of timelike particles around a black-bounce/traversable wormhole. After obtaining its semi-classic and relativistic periastron advance, we find a preliminary bound on the scale length of such a spactime based on the detected precession of the star S2 around the Galactic Center. We also study periodic orbits around it and find that the variation of the scale length can change the taxonomy of the periodic orbits and cause the transition from a periodic orbit to a quasi-periodic one and vice versa.
© The Author(s), 2020
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