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Fast Inflows Directly Feeding Quasar Accretion Disks
2019-10-31
| Seminar Title | |
| Speaker: | Dr. ZHOU Hongyan |
| Affiliation: | (USTC) |
| When | Thursday afternoon, Oct. 31, 15:00 p.m. |
| Where: | Hall 212, Astronomy Building |
| Welcome to Attend | |
| ( PMO Academic Committee & Academic Circulating committee) | |
Abstract: Being the most luminous steady beacons in the universe, quasars are believed to be powered by the accretion of gas into disks surrounding supermassive black holes. Despite the success of this standard scenario put forward half a century ago, fundamental questions remain unanswered: whether and how the black hole accretion disks are supplied with external gas? The answers are essential for understanding further questions, as to what sets off, maintains and terminates the quasar activity, and how long the quasar phase lasts for? I will talk about a new tool to probe such disk-feeding mass inflows, the long-sought-after “missing link” of the black hole accretion model.
