2022/05/16 by Deng Wang, Wang, Deng
Physics and Astronomy · #Black Holes and Theoretical Physics #Astrophysical Phenomena and Observations #Relativity and Gravitational Theory
paper · pdf · doi:10.48550/arxiv.2205.08026
Recently, the Event Horizon Telescope collaboration has reported the first image of the supermassive black hole Sagittarius in the Galactic Center. We attempt to test the validity of the no-hair theorem of black holes using this new shadow observation. Considering the Einstein-Maxwell-klein-Gordon theory with a minimally-coupled scalar field, we find that our numerical result is consistent with the prediction of the no-hair theorem. However, we can not rule out the possibility that black holes with scalar hair may exist in some special cases.