Shigehiro Nagataki

The very existence of the universe itself is a mystery, and when we contemplate it, we cannot help but feel a sense of mystery. When we are confronted with the many mysterious phenomena and mysterious celestial bodies in the universe, we cannot help but feel that we have come into contact with something far beyond human knowledge. However, we do not regard them as mysteries or beyond human knowledge but try to understand them by the wisdom of humankind, which we call astrophysics. We use physics, super-computers, and observational instruments to understand these mysterious phenomena in astrophysics. Of course, the universe is rich even in undiscovered and unknown phenomena. We are interested in even these undiscovered phenomena, studying their possible existence and observability.

I am an astrophysicist. I received my degrees from the University of Tokyo and have studied the universe at the University of Tokyo, Kyoto University, and RIKEN. I have become an external professor at OIST since Dec. 2022. I would be happy to share the mysteries of the universe and the truth behind the mysteries with everyone at OIST.

List of selected publications

1. Nagataki, Shigehiro; Hashimoto, Masa-aki; Sato, Katsuhiko; Yamada, Shoichi “Explosive Nucleosynthesis in Axisymmetrically Deformed Type II Supernovae” The Astrophysical Journal, Volume 486, Issue 2, pp. 1026-1035 (1997).
2. Ono, Masaomi; Nagataki, Shigehiro; Ferrand, Gilles; Takahashi, Koh; Umeda, Hideyuki; Yoshida, Takashi; Orlando, Salvatore; Miceli, Marco “Matter Mixing in Aspherical Core-collapse Supernovae: Three-dimensional Simulations with Single-star and Binary Merger Progenitor Models for SN 1987A” The Astrophysical Journal, Volume 888, Issue 2, id.111, 40 pp. (2020).
3. Orlando, S.; Wongwathanarat, A.; Janka, H. -T.; Miceli, M.; Ono, M.; Nagataki, S.; Bocchino, F.; Peres, G. “The fully developed remnant of a neutrino-driven supernova. Evolution of ejecta structure and asymmetries in SNR Cassiopeia A” Astronomy & Astrophysics, Volume 645, id.A66, 32 pp. (2021).
4. Sato, Toshiki; Maeda, Keiichi; Nagataki, Shigehiro; Yoshida, Takashi; Grefenstette, Brian; Williams, Brian J.; Umeda, Hideyuki; Ono, Masaomi; Hughes, John P. “High-entropy ejecta plumes in Cassiopeia A from neutrino-driven convection” Nature, Volume 592, Issue 7855, p.537-540 (2021).
5. Just, O.; Goriely, S.; Janka, H. -Th; Nagataki, S.; Bauswein, A. “Neutrino absorption and other physics dependencies in neutrino-cooled black hole accretion discs” Monthly Notices of the Royal Astronomical Society, Volume 509, Issue 1, pp.1377-1412 (2022).