Name
ONOUE, Masafusa
Degree
Doctor of Philosophy
HP (URL)
https://www.masafusaonoue.com/
Status
Assistant Professor
Research Topic
Exploring the First Billion Years of the Universe with Supermassive Black Holes
Astronomy is the ultimate means of tackling humanity’s fundamental questions: Where do we come from? What are we? Where are we going? I aim to explore the answers to this grand mystery by observing supermassive black holes that existed in the first 10% of the Universe’s 13.8-billion-year history using ground- and space-based telescopes. Specifically, I focus on the early growth of supermassive black holes, their co-evolution with their host galaxies, and their impact on large-scale structure formation.
Education and Academic Employment
Education
| 2013-2018 | Five-year Ph.D. program, department of astronomical science, The graduate university for advanced studies (SOKENDAI), school of physical sciences |
| 200-2013 | Department of Astronomy, Faculty of Science, The University of Tokyo |
Academic Employment
| 2023-2025 | Kavli Astrophysics Fellow & Project Researcher, Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), The University of Tokyo, Japan |
| 2021-2023 | Kavli Astrophysics Fellow, Kavli Institute for Astronomy and Astrophysics (KIAA), Peking University, China |
| 2018-2021 | Postdoctoral Researcher, Max Planck Institute for Astronomy (MPIA), Germany |
| 2015-2018 | Japan Society for the Promotion of Science Research Fellowship (DC1) |
Fields of Research Interests
observational astronomy, supermassive black holes, early universe, data astronomy
Academic Publications
- A Post-Starburst Pathway to Forming Massive Galaxies and Their Black Holes at z>6, Onoue, M., Ding X., Silverman, J. D., et al. (2024) arXiv:2409.07113
- Detection of stellar light from quasar host galaxies at redshift above 6, Ding X., Onoue, M., Silverman, J.D., et al. 2023, Nature, 621, 51
- A Candidate for the Least-massive Black Hole in the First 1.1 Billion Years of the Universe, Onoue, M., Inayoshi, K., Ding, X., et al. (2023) ApJL 942, L17
- Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XIV. A Candidate Type II Quasar at z = 6.1292, Onoue, M., Matsuoka, Y., Kashikawa, N., et al. (2021) ApJ 919, 61
- No Redshift Evolution in the Broad-line-region Metallicity up to z = 7.54: Deep Near infrared Spectroscopy of ULAS J1342+0928, Onoue, M., Ban ̃ados, E., Mazzucchelli, C., et al. (2020) ApJ 898, 105
- Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). VI. Black Hole Mass Measurements of Six Quasars at 6.1 < z < 6.7, Onoue, M., Kashikawa, N., Matsuoka, Y., et al. (2019) ApJ 880, 77
- Enhancement of galaxy overdensity around quasar pairs at z < 3.6 based on the Hyper Suprime-Cam Subaru Strategic Program Survey, Onoue, M., Kashikawa, N., Uchiyama, H., et al. (2018) PASJ 70, S31
- Minor Contribution of Quasars to Ionizing Photon Budget at z=6: Update on Quasar Luminosity Function at the Faint End with Subaru/Suprime-Cam, Onoue, M., Kashikawa, N., Willott, C. J., et al. (2017) ApJL 847, L15
Other Interests
skiing, cooking, watching musicals
Affiliated Academic Organizations
The Astronomy Society of Japan
The Group of Optical and Infrared Astronomers
