Hiroshi Akitaya. Implications of High Polarization Degree for the Surface State of Ryugu. 2021
Hiroshi Akitaya. Optical follow-up observation for GW event S190510g using Subaru/Hyper Suprime-Cam. 2021
Hiroyuki Maehara, Yuta Notsu, Kousuke Namekata, Satoshi Honda, Adam F Kowalski, Noriyuki Katoh, Tomohito Ohshima, Kota Iida, Motoki Oeda, Katsuhiro L Murata, et al. Time-resolved spectroscopy and photometry of M dwarf flare star YZ Canis Minoris with OISTER and TESS: Blue asymmetry in the Hα line during the non-white light flare. Publications of the Astronomical Society of Japan. 2020
Hiroshi Akitaya. Multi-wavelength photometry during the 2018 superoutburst of the WZ Sge-type dwarf nova EG Cancri. Publications of the Astronomical Society of Japan. 2020
Hiroshi Akitaya. SN 2019ein: New Insights into the Similarities and Diversity among High-velocity Type Ia Supernovae. The Astrophysical Journal. 2020