Assistant Professor IWATA, Yuhei
Research Field
- Radio Astronomy, Time-domain Astronomy, Supermassive Black Hole, Supernova
Degree
- Ph.D. (from Keio University)
Brief Introduction of Research
- I am interested in the activity and formation process of supermassive black holes. To investigate it, I have been studying the time variability of Sagittarius A*, the nucleus of our Galaxy, in the radio band using VERA, ALMA, and EHT, and searching for hidden black holes by observing peculiar molecular clouds in the Galactic central region. I also carry out radio follow-up observations of supernovae and other transients, mainly using VLBI.
Main Research Achievements
- “Distance to the Low-velocity Cloud in the Direction of the High-velocity Compact Cloud CO-0.40-0.22”, Iwata et al. 2017, ApJ, 840, 18,
- “Time Variations in the Flux Density of Sgr A* at 230 GHz Detected with ALMA”, Iwata et al. 2020, ApJ, 892, L30
- “ALMA View of the High-velocity-dispersion Compact Cloud CO 0.02-0.02 at the Galactic Center”, Iwata et al. 2023, ApJ, 950, 25
- “Radio Follow-up Observations of SN 2023ixf by Japanese and Korean Very Long Baseline Interferometers”, Iwata et al. 2025, ApJ, 978, 138
Academic Society
- The Astronomical Society of Japan
Academic Award
Other Activity
- Lecturer at Keio University (2022)
- Lecturer at National Institute of Technology, Ichinoseki College (2024-)
Contact us
- yuhei.iwata[at]nao.ac.jp
(In the mailing address, replace [at] with @)
