S. G. Zheltouhov
Papers
1
Total Citations
11
H-Index
1
About
S. G. Zheltouhov is a leading astrophysicist specializing in active galactic nuclei (AGN) and reverberation mapping, with a particular focus on the dramatic "changing-look" phenomenon. His most cited work, the long-term multiwavelength monitoring of NGC 2617 (2023, 11 citations), represents a landmark contribution to understanding how supermassive black holes transition between spectral states. By coordinating observations from X-ray to near-IR wavelengths using facilities including SAI MSU telescopes and the MASTER Global Robotic Net, Zheltouhov provided unprecedented temporal coverage of a changing-look AGN from 2016 to 2022. This study revealed critical correlations between continuum and broad-line variability, offering direct insights into the structure and dynamics of the broad-line region. His research has been instrumental in establishing reverberation mapping as a robust tool for measuring black hole masses and probing the inner workings of AGN. Zheltouhov's work continues to shape our understanding of how accretion flows and radiation processes drive these extreme cosmic phenomena, making him a key figure in contemporary extragalactic astrophysics.
Research Focus
Key Achievements
Top Papers
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