Speaker
Description
When a strong gravitational field is present around an SMBH, dark matter with gravitational interactions can congregate and create an environment that is far more dense than it would be in other regions. In recent years, the orbital dynamics of the S-star near the galactic center (GRAVITY/Keck), the imaging of SMBH (EHT), the nanohertz stochastic gravitational wave (PTA), and the precise observations of massive galaxies in the early universe (JWST) have all contributed to our understanding of the physical processes near SMBH, particularly the signals that may be left behind by dense dark matter. Consequently, we employ these observations to investigate possible indications that the traditional dark matter candidates—WIMP, ULDM, ALP and PBH—may have left behind in the SMBH observations. Our findings can not only shed light on the role that dark matter played in the formation and evolution of SMBH, but they can also offer fresh physical motivations of future multi-band and multi-messenger observations of SMBH.
