Work

Probing the regular black hole with an asymptotically Minkowski core by precessing motion of S2 star and OJ 287

Year: 2024

Type: article

Abstract: We investigate the precessing motion around the the regular black hole with an asymptotically Minkowski core which has a suppression parameter $$\ell $$ ℓ . We obtain the third-order post-Newtonian quasi-Keplerian motion of a test particle in this spacetime and find its relativistic periastron advance. Then, we test this model with the precessing motion of the star S2 and of OJ 287 and determine the upper limits of the dimensionless suppression parameter as $$\ell /m \sim 10^{-3}$$ ℓ / m ∼ 10 - 3 , where m is the mass of the black hole. Compared with the bound given by the shadow of Sgr A*, our bound on $$\ell /m$$ ℓ / m is reduced by 2 orders of magnitude, although our upper limit of $$\ell $$ ℓ still needs further improvement.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-024-13298-0

Authors: Bo Yang, Guansheng He, Yi Xie, Wenbin Lin

Institutions: Chinese Academy of Sciences, Purple Mountain Observatory, University of South China

Language: English

Topic: Astrophysical Phenomena and Observations

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hunan Province