Shanghai Astronomical Observatory Astrophysics Colloquium

Title：Properties of luminous AGNs derived from multiwavelength observations and SED fitting

Speaker：Lulu Fan（USTC）

Time：3:00 pm Jan.15th (Wednesday)

Tencent Meeting：550-349-757 password: 6360

Location: Large conference room, 3rd floor

Abstract：

It has been established that there exists a robust relationship between supermassive black holes (SMBHs) and their host galaxies within the local universe, known as the BH scaling relations. This relation constitutes one of the crucial observational pieces of evidence underpinning the contemporary coevolution model of SMBHs and their host galaxies. Spectral Energy Distribution (SED) fitting, serving as a significant tool, is utilized to investigate the properties of AGN hosts. In this presentation, I will elucidate the methodology I employed in applying SED modeling to examine the physical characteristics of X-ray-selected AGNs and luminous obscured quasars at high redshifts. Furthermore, I will endeavor to explore other properties of luminous obscured AGNs, such as gas, dust, and the surrounding environment, through multiwavelength observations. Our findings are in alignment with the predictions put forth by the merger-driven evolutionary scenario.

CV：

Dr. Lulu Fan currently holds the position of professor in the Department of Astronomy at the University of Science and Technology of China (USTC). In 2004, he obtained his bachelor's degree from USTC and subsequently received his doctoral degree from the International School for Advanced Studies (SISSA, Italy) in 2011. Thereafter, he served as a postdoctoral fellow at USTC and Chalmers University of Technology (Sweden). In 2015, he was appointed as a full professor at Shandong University at Weihai. He returned to USTC in 2019. In 2018, he was funded by the Natural Science Fund for Distinguished Young Scholars of Shandong Province and the National Science Foundation for Excellent Young Scholars of China. His primary research focuses multiwavelength observations, galaxy morphology and structure, as well as the co-evolution of supermassive black holes and their host galaxies. Additionally, he is engaged in the development of the data reduction pipeline and associated analysis tools for the 2.5m Wide Field Survey Telescope (WFST).

Koushare link to the recorded presentation