The Black Hole Mass and Dynamical Mass Scaling Relation of Galaxies at Low and High Redshift
星系中心大质量黑洞与星系动力学质量的尺度联系
The tight correlation between supermassive black holes (BHs) and their host galaxies bulge mass in the local Universe suggests that BHs and their host galaxies likely co-evolve. Many studies have attempted to extend this relationship to the more distant Universe by measuring BH mass and the properties of host galaxies in active galactic nuclei (AGN) host galaxies. Due to the AGN's overshining, it is challenging to directly measure the stellar mass, so these studies tend to estimate the dynamical mass (Mdyn) of the host galaxies through gas observations. However, the Mdyn-BH relation in high-redshift AGNs shows significant differences from that in low-redshift AGNs. In this talk, I will review the methods and main results regarding the measurement of galaxy rotation curves and dynamics at both low and high redshifts. I will discuss the key findings and issues in current studies of the Mdyn-BH relation at high redshift. Finally, I will conclude with a discussion on how to properly estimate Mdyn and the potential for future research in this area.
