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About

Hui Bai is a leading astrophysicist specializing in active galactic nuclei (AGN) and reverberation mapping, with a particular focus on the dramatic "changing-look" phenomenon. Their most cited work, a landmark study on NGC 2617, presents the results of an unprecedented six-year multiwavelength monitoring campaign from 2016 to 2022. By coordinating observations across X-ray, optical, and near-infrared bands using facilities like the SAI MSU telescopes and the MASTER Global Robotic Net, Bai provided the most comprehensive view yet of a changing-look AGN in action. This research, which has already garnered 11 citations, fundamentally advanced our understanding of how supermassive black holes can rapidly shift their accretion states. Bai’s contributions are critical for unraveling the physics behind these transient events, offering key insights into the structure of the broad-line region and the mechanisms driving AGN variability. Their work stands as a benchmark for future time-domain studies of galactic nuclei.