Abstract: Massive black holes (MBHs) grow together with their host galaxies throughout cosmic time. I will talk about our recent efforts covering low to high levels (i.e., basic data analyses to scientific interpretation) in building a complete picture of the MBH growth under the accretion-driven and merger-driven channels. I will first highlight the multiwavelength data in three Deep-Drilling Fields of the Vera C. Rubin Observatory, based on which many more scientific topics have been investigated. With the data preparations, I will present the best measurements of the population mean MBH accretion rate as a function of galaxy stellar mass and redshift, where we use X-rays to sample the AGN accretion power and multiwavelength surveys to sample galaxies. I will then combine our observed accretion with modern cosmological simulations, which provide merger information, to illustrate how SMBHs evolve from z = 4 to z = 0. In the final part, I will present our searches and characterizations of MBHs in dwarf galaxies, including their active fraction and occupation fraction, which can constrain SMBH seeding mechanisms in the early Universe.
Bio: Dr. Fan Zou (邹凡) is currently a postdoctoral researcher at University of Michigan. He received his Ph.D. at The Pennsylvania State University in 2024 and bachelor's degree at University of Science and Technology of China in 2019. He is broadly interested in massive black holes and their coevolution with galaxies, and his research has a strong focus on multiwavelength data covering from X-ray to radio. He is also a full member of the Rubin LSST AGN Science Collaboration.
