Precessing and periodic orbits around Lee–Wick black holes

• Published in: European physical journal plus Vol. 137; no. 2; p. 176
• Main Authors: Lin, Hou-Yu, Deng, Xue-Mei
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2022; Springer Nature B.V
• Subjects: Applied and Technical Physics; Atomic; Black holes; Complex Systems; Condensed Matter Physics; Gravitational fields; Gravitational waves; Gravity; Investigations; Mathematical and Computational Physics; Molecular; Neutrons; Optical and Plasma Physics; Orbital mechanics; Orbits; Physics; Physics and Astronomy; Regular Article; Taxonomy; Theoretical
• ISSN: 2190-5444; 2190-5444
• DOI: 10.1140/epjp/s13360-022-02391-6

We investigate neutral massive particles’ precessing and periodic motions around Lee–Wick black holes. By deriving the secular periastron precession for the massive particles orbiting around Lee–Wick black holes, we obtain a preliminary bound on the UV scale of the spacetime in view of the orbit of the S2 star around Sgr A*. It shows that the precessing in the weak gravitational field is very similar to Schwarzschild ones. After that, in the strong gravitational field, periodic motions for the particles are studied by taking a taxonomy into account. And it suggests that the variation of the UV scale can change the taxonomy for the quasi-periodic and periodic motions. It also leads to a transition from a quasi-periodic motion to periodic motion, and vice versa. These maybe provide us a chance to identify some information of Lee–Wick black holes by using the orbital dynamics of the massive particles nearby the strong gravitational field.