Title: Imaging nearby supermassive black holes: recent results and future prospects

Speaker: 路如森

Institute:  中国科学院上海天文台

Host: 武剑锋

Time: 2024.3.14 周四 14:30

Location: 物理楼 552

Abstract:

Imaging nearby supermassive black holes provides a new astrophysical laboratory, allowing us to test general relativity in the extremely strong gravitational field around black holes and to study physical processes such as mass accretion and jet formation. (Sub)millimeter Very Long Baseline Interferometry (VLBI) observations can achieve the highest spatial resolution in current astronomical observations. In recent years, global (sub)millimeter VLBI observations have made unprecedented progress in black hole imaging and have captured the images of two nearby supermassive black holes. In this talk, I will present some recent results obtained with millimeter VLBI observations and discuss some future prospects.

Bio：

Rusen Lu obtained his Ph.D. from the University of Cologne in 2010 and from the Shanghai Astronomical Observatory, Chinese Academy of Sciences in 2011. He then worked as a postdoctoral researcher at the Massachusetts Institute of Technology and the Max Planck Institute for Radio Astronomy. In 2018, he returned to China and joined the Shanghai Astronomical Observatory. His research interests lie in the area of high-resolution radio astrophysics, with a particular emphasis on imaging studies of nearby supermassive black holes.

Related references:

Lu R.-S. et al. 2023, Nature, 616, 686.: https://www.nature.com/articles/s41586-023-05843-w

Yan X. et al. 2023, ApJ, 957, 32: https://iopscience.iop.org/article/10.3847/1538-4357/acf8c1

EHT collaboration et al. 2024, A&A, 681, A79: https://www.aanda.org/articles/aa/full_html/2024/01/aa47932-23/aa47932-23.html

EHT collaboration et al. 2022, ApJL, 930, L12 - L17

EHT collaboration et al. 2019, ApJL, 875, L1 - L6