中国科学院云南天文台学术报告通知

2025年第44期

报告题目：Quasiperiodic eruptions in accretion flows and CATCH

报告人：Prof. Zhen PAN

报告人单位：Shanghai Jiao Tong University

报告语言：中文/ English

报告时间：2025年8月20日（星期三）14:30-15:30

报告地点：科研1号楼318会议室

报告摘要：

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Quasiperiodic eruptions (QPEs) are intense, repeating soft X-ray bursts with recurrence times about a few hours to a few weeks from galactic nuclei. In this talk, I will first review QPE observations, then explain why QPEs are commonly believed to be the result of collisions between a stellar mass object (a stellar mass black hole or a main-sequence star) and an accretion disk around a supermassive black hole (SMBH) in galactic nuclei and what can we learn from QPE timing. Finally, I will introduce a proposed multi-target X-ray telescope, CATCH (Chasing All Transients Constellation Hunters), which will play a vital role in future QPE detection and long-term monitoring.

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报告人简介： 

Zhen Pan (潘震) is now an associate Prof. at T.D. Lee Institute and Department of Astronomy, Shanghai Jiao Tong University. He got his Ph.D at University of California, Davis, then did his postdoc research at Perimeter Instituter for Theoretical Physics. His research currently focus on gravitational wave astrophysics, including perturbation theory of compact objects, astrophysics of compact binary formation and statistics of gravitational waves.

云台邀请方： 南方天文观测基地

邀请方联系人：董小波