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吉川研究室博士３年の桑原正輝さんの博士論文が複雑理工学専攻における審査に合格し、 　博士の学位の受理が決定しました。卒業後、4月からISAS/JAXAの研究員となる予定です。

A paper on the ultra-compact probe EQUUREUS and its ultraviolet imaging device PHOENIX, developed by Assistant Professor Masaki Kuwahara of Rikkyo University and Associate Professor Kazuo Yoshioka of our laboratory, has been published in the Journal of Geophysical Research: Space Physics. Using a tiny telescope the size of a can of coffee, we have successfully imaged the entire Earth’s plasma sphere!   【The article information】 Kuwabara, M., Yoshioka, K., Hikida, R.,Murakami, G., Yoshikawa, I., Nakajima, S., et al. (2025). Global and sequentialimaging observation of the Earth’s plasmasphere by PHOENIX onboard EQUULEUS. Journal of Geophysical Research: Space Physics, 130,e2024JA033389. https://doi.org/10.1029/2024JA033389