Doron Chelouche
Papers
2
Total Citations
20
H-Index
2
About
Doron Chelouche is a leading astrophysicist whose research centers on the dynamic environments of active galactic nuclei (AGN) and the intricate physics of supermassive black hole accretion. His major contributions lie in the application of reverberation mapping (echo mapping) to probe the innermost regions of AGN, using multiwavelength monitoring to measure the size and structure of accretion disks and the broad-line region. In a landmark study of the changing-look AGN NGC 2617, Chelouche led a long-term, multiwavelength campaign from 2016 to 2022, tracking dramatic spectral transformations across X-ray to near-IR bands. This work, with 11 citations, provides crucial insights into the mechanisms driving these enigmatic state changes. More recently, his 2025 paper on NGC 7469 (9 citations) advanced the field by testing the theoretical prediction that reverberation lags scale with wavelength, directly probing the temperature profile of the accretion flow. Through these pioneering campaigns, Chelouche has significantly deepened our understanding of how matter spirals into black holes and how these cosmic powerhouses evolve over human timescales.
Research Focus
Key Achievements
Top Papers
- 1
- 2Echo mapping of the black hole accretion flow in NGC 74699 citations · 2025