吉岡 和夫 (YOSHIOKA, Kazuo)

 

吉岡 和夫 

YOSHIOKA, Kazuo

東京大学大学院 新領域創成科学研究科

基盤科学研究系 複雑理工学専攻 講師

E-mail:kazuo.yoshioka at edu.k.u-tokyo.ac.jp

居室:新領域基盤棟4階4H5室(柏キャンパス)

 

研究分野

惑星探査, 宇宙空間物理学, アストロバイオロジー

吉岡研究室のテーマ一覧

 

研究内容

人工衛星を用いた惑星大気・プラズマの観測的研究、および搭載用の観測装置の開発を行っている。磁場を持つ惑星(地球・木星など)の近傍で起きているプラズマの加速現象や、弱磁場惑星(火星・金星など)からの大気散逸現象について、主に遠隔観測手法を用いてアプローチしている。将来的には惑星探査や太陽系外探査に向けた技術確立を目指す。

 

主要論文・学会発表(2020/5/25更新)

researchmap: https://researchmap.jp/kylj0701/

査読付き論文(researchmapより更新頻度低い)

-2020-

  • Morota, T., Sugita, S., Cho, Y., Kanamaru, M., Tatsumi, E., Sakatani, N., Honda, R., Hirata, N., Kikuchi, H., Yamada, M., Yokota, Y., Kameda, S., Matsuoka, M., Sawada, H., Honda, C., Kouyama, T., Ogawa, K., Suzuki, H., Yoshioka, K., Hayakawa, M., Hirata, N., Hirabayashi, M., Miyamoto, H., Michikami, T., Hiroi, T., Hemmi, R., Barnouin, O. S., Ernst, C. M., Kitazato, K., Nakamura, T., Riu, L., Senshu, H., Kobayashi, H., Sasaki, S., Komatsu, G., Tanabe, N., Fujii, Y., Irie, T., Suemitsu, M., Takaki, N., Sugimoto, C., Yumoto, K., Ishida, M,, Kato, H., Moroi, K., Domingue, D., Michel, P., Pilorget, C., Iwata, T., Abe, M., Ohtake, M., Nakauchi, Y., Tsumura, K., Yabuta, H., Ishihara, Y., Noguchi, R., Matsumoto, K., Miura, A., Namiki, N., Tachibana, S., Arakawa, M., Ikeda, H., Wada, K., Mizuno, T., Hirose, C., Hosoda, S., Mori, O., Shimada, T., Soldini, S., Tsukizaki, R., Yano, H., Ozaki, M., Takeuchi, H., Yamamoto, Y., Okada, T., Shimaki, Y., Shirai, K., Iijima, Y., Noda, H., Kikuchi, S., Yamaguchi, T., Ogawa, N., Ono, G., Mimasu, Y., Yoshikawa, K., Takahashi, T., Takei, Y., Fujii, A., Nakazawa, S., Terui, F., Tanaka, S., Yoshikawa, M., Saiki, T., Watanabe, S., and Tsuda, Y., (2020), Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution, Science 368, 654-659.
  • Arakawa, M., Saiki, T., Wada, K., Ogawa, K., Kadono, T., shirai, K., Sawada, H., Ishibashi, K., Honda, R., Sakatani, N., Iijima, Y., Okamoto, C., Yanao, H., Takagi, Y., Hayakawa, M., Michel, P., Jutzi, M., Shimaki, Y., Kimura, S., Mimasu, Y., Toda, T., Imamura, H., Nakazawa, S., Hayakawa, H., Sugita, S., Morota, T., Kameda, S., Tatsumi, E., Cho, Y., Yoshioka, K., Yokota, Y., Matsuoka, M., Yamada, M., Kouyama, T., Honda, C., Tsuda, Y., Watanabe, S., Yoshikawa, M., Tanaka, S., Terui, F., Kikuchi, S., Yamaguchi, T>, Ogawa, N., Ono, G., Yoshikawa, K., Takahashi, T., Takei, Y., Fujii, A., Takeuchi, H., Yamamoto, Y., Okada, T., Hirose, C., Hosoda, S., Mori, O., Shimada, T., Soldini, S., Tsukizaki, R., Iwata, T., Ozaki, M., Abe, M., Namiki, N., Kitazato, K., Tachibana, S., Ikeda, H., Hirata, N., Noguchi, R., and Miura, A., (2020), An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime, Science 368, 67-71.
  • 福場惇哉,吉岡和夫,桑原正輝,吉川一朗,振子式衝撃試験装置の性能評価およびMCPの衝撃耐性評価(2020),宇宙航空研究開発機構開発報告,JAXA-RR-19-005, 1-28.
  • Nara, Y., Imamura, T., Masunaga, K., Lee, Y. J., Terada, N., Yoshioka, K., Yamazaki, A., Seki, K., Yoshikawa, I., Yamada, M., and Watanabe, S., J. Geophys. Res. Planets, 125, e2019JE006192, https://doi.org/10.1029/2019JE006192.
  • Hikida, R., Yoshioka, K., Tsuchiya, F., Kagitani, M., Kimura, T., Bagenal, F., Schneider, N., Murakami, G., Yamazaki, A., Kita, H., Nerney, E., Yoshikawa, I., (2019), Spatially asymmetric increase in hot electron fraction in the Io plasma torus during volcanically active period revealed by observations by Hisaki/EXCEED from November 2014 to May 2015, Geophys. Res. Space Phys. 125(3), XXXX-XXXX. https://doi.org/10.1029/2019JA027100 (基盤B 19H01948)

-2019-

  • Kita, H. Kimura, T., Tao, C., Tsuchiya, F., Murakami, G., Yamazaki, A., Yoshioka, K., Ebert, R., W., Wilson, R., J., Allegreini, F., Clark G., Connerney, J. E. P., Gladstone, G. R., Yoshikawa, I., and Fujimoto, M., (2019), Jovian UV aurora’s response to the solar wind: Hisaki EXCEED and Juno observation, Geophys. Res. Space Phys. 124, 10209-10218. https://doi.org/10.1029/2019JA026997. (基盤B 19H01948)
  • Koga, R., Tsuchiya, F., Kagitani, M., Sakanoi, T., Yoshioka, K., Yoshikawa, I., Kimura, T., Murakami, G., Yamazaki, A., Smith, T., H., Bagenal, F., (2019), Transient change of Io’s neutral oxygen cloud and plasma torus observed by Hisaki, Geophys. Res. Space Phys. 124, 10318-10331. https://doi.org/10.1029/2019JA026877. (基盤B 19H01948)
  • Preusker, F., Scholter, F., Elgner, S., Matz, K.-D., Kameda, S., Roatsch, T., Jaumann, R., Sugita, S., Honda, R., Morota, T., Tatsumi, E., Cho, Y., Yoshioka, K., Sawada, H., Yokota, Y., Skatani, N., Hayakawa, M., Matsuoka, M., Yamada, M., Kouyama, T., Suzuki, H., Honda, C., Ogawa, K., The MASCOT landing area on asteroid (162173) Ryugu -Stereo-photogrammetric analysis using images of the ONC cameras onboard the Yahabusa2 spacecraft, Astronomy & Astrophysics 632, L4.
  • Scholten, F., Preusker, F., Elgner, S., Matz, K.-D., Jaumann, R., Biele, J., Hercik, D., Auster, H.-U., Hamm, M., Grott, M., Grimm, C., Ho, T.-M., Koncz, A., Schimtz, N., Trauthan, F., Kameda, S., Sugita, S., Honda, R., Morota, T., Tatsumi, E., Cho, Y., Yoshioka, K., Sawada, H., Yokoya, Y., Sakatani, N., Hayakawa, M., Matuoka, M., Yamada, M., Kouyama, T., Suzuki, H., Honda, C., Ogawa, K., The descent and bouncing path of the Hayabusa2 lander MASCOT at asteroid (162173) Ryugu, Astronomy & Astrophysics 632, L3, DOI: 10.1051/0004-6361/201936757.
  • Funase, R., Ikari, S., Miyoshi, K., Kawabata, Y., Nakajima, S., Nomura, S., Funabiki, N., Ishikawa, A., Kakihara, K., Matsushita, S., Takahashi, R., Yanagida, K., Mori, D., Murata, Y., Shibukawa, T., Suzumoto, R., Fujiwara, M., Tomita, K., Aohama, H., Iiyama, K., Ishiwata, S., Kondo, H., Mikuriya, W., Seki, H., Koizumi, H., Asakawa, J., Nishii, K., Hattori, A., Saito, Y., Kikuchi, K., Kobayashi, Y., Tomiki, A., Torii, W., Ito, T., Campagnola, S., Ozaki, N., Baresi, N., Yoshikawa, I., Yoshioka, K., Kuwabara, M., Hikida, R., Arao, S., Abe, S., Yanagisawa, M., Fuse, R., Masuda, Y., Yano, H., Hirai, T., Arai, K., Jitsukawa, R., Ishioka, E., Nakano, H., Ikenaga, T., Hashimoto, T., (2019), Mission to Earth–Moon Lagrange Point by a 6U CubeSat: EQUULEUS, IEEE Aerospace & Electronics Systems Magazine, in press
  • Hirata, N., Morota,T., Cho, Y., Kanamaru, M., Watanabe, S., Sugita, S., Hirata, N., Yamamoto, Y., Noguchi, R., Shimaki, Y., Tatusmi, E., Yoshioka, K., Sawada, H., Yokota, Y., Sakatani, N., Hayakawa, M., Matsuoka, M., Honda, R., Iijima, Y., (2019), The spatial distribution of impact craters on Ryugu, Icarus, 338, 113527.
  • Yao, Z. H., Grodent, D., Kurth, W. S., Clark, G., Mauk, B. H., Kimura, T., Bonfond, B., Ye, S.-Y., Lui, A. T., Radioti, A., Palmaerts, B., Dunn, W. R., Ray, L. C., Bagenal, F., Badman, S. V., Rae, I. J., Guo, R. L., Pu, Z. Y., Gérard, J.-C., Yoshioka, K., Nichols, J. D., Bolton, S., Levin, S. M., (2019), On the relation between Jovian aurorae and the loading/unloading of the magnetic flux: simultaneous measurements from Juno, HST and Hisaki, Res. Lett. 46, 11632-11641, https://doi.org/10.1029/2019GL084201. (基盤B 19H01948)
  • Barucci, M. A., Hasselmann, P. H., Fulchignoni, M., Honda, R., Yokota, Y., Sugita, S., Kitazato, K., Deshapriya, J. D. P., Perna, D., Tatsumi, E., Domingue, D., Morota, T., Kameda, S., Iwata, T., Abe, M., Ohtake, M., Matsuura, S., Matsuoka, M., Hiroi, T., Nakamura, T., Kouyama, T., Suzuki, H., Yamada, M., Sakatani, N., Honda, C., Ogawa, K., Hayakawa, M., Yoshioka, K., Cho, Y., Sawada, H., Takir, D., Vilas, F., Hirata, N., Hirata, N., Tanaka, S., Yamamoto, Y., Yoshikawa, M., Watanabe, S., and Tsuda, Y., (2019), Multivariable statistical analysis of spectrophotometry and spectra of (162173) Ryugu as observed by JAXA Hayabusa2 mission, Astronomy and Astrophysics, 629, A13.
  • Michikami, T., Yamada, M., Cho, Y., Miyamoto, H., Hayakawa, M., Honda, C., Tsuda, Y., Yoshioka, K., Kameda, S., Yokota, Y., Hirata, N., Tanaka, S., Kikuchi, H., Suzuki, H., Hirabayashi, M., Sugita, S., Noguchi, R., Irie, T., Hagermann, A., Kawamura, M., Hemmi, R., Watanabe, S., Sakatani, N., Morota, T., Honda, R., Sugimoto, K., Sawada, H., Ogawa, K., Matsuoka, M., Hirata, N., Noguchi, T., Ernst, C., Tatsumi, E., Yoshikawa, M., Nomura, K., and Kouyama, T., (2019), Boulder size and shape distributions on asteroid Ryugu, Icarus 331, 179-191, https://doi.org/10.1016/j.icarus.2019.05.019.
  • Tsuchiya, F., Arakawa, R., Misawa, H., Kagitani, M., Koga, R., Suzuki, F., Hikida, R., Yoshioka, K., Steffl, A., Bagenal, F., Delamere, P., Kimura, T., Kasaba, Y., Murakami, G., Yoshikawa, I., Yamazaki, A., and Yoneda, M., (2019), Azimuthal variation in the Io plasma torus observed by the Hisaki satellite from 2013 to 2016, Geophys. Res. Space Phys. 124(5), 3236-3254. https://doi.org/10.1029/2018JA026038
  • Hirabayashi, M., Tatsumi, E., Miyamoto, H., Komatsu, G., Sugita, S., Watanabe, S., Scheeres, D., J., Barnouin, O., S., Michel, P., Honda, C., Michikami, T., Cho, Y., Morota, T., Hirata, N., Hirata, N., Sakatani, N., Schwartz, S., R., Honda, R., Yokota, Y., Kameda, S., Suzuki, H., Kouyama, Y., Hayakawa, M., Matsuoka, M., Yoshioka, K., Ogawa, K., Sawada, H., Yoshikawa, M., and Tsuda, Y., (2019), The Western Bulge of 162173 Ryugu Formed as a Result of a Rotationally Driven Deformation Process, Astrophysical Journal Letters 874:L10, https://doi.org/10.3847/2041-8213/ab0e8b.
  • Kitazato, K., Milliken, R. E., Iwata, T., Abe, M., Ohtake, M., Matsuura, S., Arai, Takehiko, Nakauchi, Y., Nakamura, T., Matsuoka, M., Senshu, H., Hirata, Naru, Hiroi, T., Pilorget, C., Brunetto, R., Poulet, F., Riu, L., Bibring, J.-P., Takir, D., Domingue, D. L., Vilas, F., Barucci, M. A., Perna, D., Palomba, E., Galiano, A., Tsumura, K., Osawa, T., Komatsu, M., Nakato, A., Arai, Tomoko, Takato, N., Matsunaga, T., Takagi, Y., Matsumoto, K., Kouyama, T., Yokota, Y., Tatsumi, E., Sakatani, N., Yamamoto, Y., Okada, T., Sugita, S., Honda, R., Morota, T., Kameda, S., Sawada, H., Honda, C., Yamada, M., Suzuki, H. Yoshioka, K., Hayakawa, M., Ogawa, K., Cho, Y., Shirai, K., Shimaki, Y., Hirata, Naoyuki, Yamaguchi, A., Ogawa, N., Terui, F., Yamaguchi, T., Takei, Y., Saiki, T., Nakazawa, S., Tanaka, S., Yoshikawa, M., Watanabe, S., Tsuda, Y., (2019), The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy, Science 364, 272-275, 10.1126/science.aav7432.
  • Watanabe, S., Hirabayashi, M., Hirata, N., Hirata, N., Noguchi, R., Shimaki, Y., Ikeda, H., Tatsumi, E., Yoshikawa, M., Kikuchi, S., Yabuta, H., Nakamura, T., Tachibana, S., Ishihara, Y., Morota, T., Kitazato, K., Sakatani, N., Matsumoto, K., Wada, K., Senshu, H., Honda, C., Michikami, T., Takeuchi, H., Kouyama, T., Honda, R., Kameda, S., Fuse, T., Miyamoto, H., Komatsu, G., Sugita, S., Okada, T., Namiki, N., Arakawa, M., Ishiguro, M., Abe, M., Gaskell, R., Palmer, E., Barnouin, O. S., Michel, P., French, A. S., McMahon, J. W., Scheeres, D. J., Abell, P. A., Yamamoto, Y., Tanaka, S., Shirai, K., Matsuoka, M., Yamada, M., Yokota, Y., Suzuki, H., Yoshioka, K., Cho, Y., Tanaka, S., Nishikawa, N.,  Sugiyama, T., Kikuchi, H., Hemmi, R., Yamaguchi, T., Ogawa, N., Ono, G., Mimasu, Y., Yoshikawa, K., Takahashi, T., Takei, Y., Fujii, A., Hirose, C., Iwata, T., Hayakawa, M., Hosoda, S., Mori, O., Sawada, H., Shimada, T., Soldini, S., Yano, H., Tsukizaki, R., Ozaki, M., Iijima, Y., Ogawa, K., Fujimoto, M., Ho, T.-M., Moussi, A., Jaumann, R., Bibring, J.-P.,  Krause, C., Terui, F., Saiki, T., Nakazawa, S., Tsuda, Y. (2019), Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu—A spinning top–shaped rubble pile, Sceience 364, 268-272, 10.1126/science.aav8032.
  • Sugita, S., Honda, R., Morota, T., Kameda, S., Sawada, H., Tatsumi, E., Yamada, M., Honda, C., Yokota, Y., Kouyama, T. Sakatani, N., Ogawa, K., Suzuki, H., Okada, T., Namiki, N., Tanaka, S., Iijima, Y., Yoshioka, K., Hayakawa, M., Cho, Y., Matsuoka, M., Hirata, N., Hirata, N., Miyamoto, H., Domingue, D., Hirabayashi, M., Nakamura, T., Hiroi, T., Michikami, T., Michel, P., Ballouz, R.-L., Barnouin, O. S., Ernst, C. M., Schröder, S. E., Kikuchi, H., Hemmi, R., Komatsu, G., Fukuhara, T., Taguchi, M., Arai, T., Senshu, H., Demura, H., Ogawa, Y., Shimaki, Y., Sekiguchi, T., Müller, T. G., Hagermann, A., Mizuno, T., Noda, H., Matsumoto, K., Yamada, R., Ishihara, Y., Ikeda, H., Araki, H., Yamamoto, K., Abe, S., Yoshida, F., Higuchi, A., Sasaki, S., Oshigami, S., Tsuruta, S., Asari, K., Tazawa, S., Shizugami, M., Kimura, J., Otsubo, T., Yabuta, H., Hasegawa, S., Ishiguro, M., Tachibana, S., Palmer, E., Gaskell, R., Corre, L. Le, Jaumann, R., Otto, K., Schmitz, N., Abell, P. A., Barucci, M. A., Zolensky, M. E., Vilas, F., Thuillet, F., Sugimoto, C., Takaki, N., Suzuki, Y., Kamiyoshihara, H., Okada, M., Nagata, K., Fujimoto, M., Yoshikawa, M., Yamamoto, Y., Shirai, K., Noguchi, R., Ogawa, N., Terui, F., Kikuchi, S., Yamaguchi, T., Oki, Y., Takao, Y., Takeuchi, H., Ono, G., Mimasu, Y., Yoshikawa, K., Takahashi, T., Takei, Y., Fujii, A., Hirose, C., Nakazawa, S., Hosoda, S., Mori, O., Shimada, T., Soldini, S., Iwata, T., Abe, M., Yano, H., Tsukizaki, R., Ozaki, M., Nishiyama, K., Saiki, T., Watanabe, S., Tsuda Y. (2019), The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes, Science 364, eaaw0422, 10.1126/science.aaw0422.
  • Kita, H., Misawa, H., Bhardwaj, A., Tsuchiya, F., Murakami, G., Tao, C., Kimura, T., Yoshioka, K., Yamazaki, A., Kasaba, Y., Yoshikawa, I., and Fujimoto M. (2019), Short-term variation in the dawn-dusk asymmetry of the Jovian radiation belt obtained from GMRT and Hisaki EXCEED observations, Astrophysical Journal Letters 872:L24, https://doi.org/10.3847/2041-8213/ab0427.
  • Kimura, T., Yamazaki, A., Yoshioka, K., Murakami, G., Tsuchiya, F., Kita, H., Tao, C., Yoshikawa, I., and Yamauchi, C. (2019), Development of ground pipeline system for high-level scientific data products of the Hisaki satellite mission and its application to planetary space weather, Journal of Space Weather and Space Climate 9, A8, https://doi.org/10.1051/swsc/2019005.
  • Tatsumi, E., Kouyama, T., Suzuki, H., Ymada, M., Sakatani, N., Kameda, S., Yokota, Y., Honda, R., Morota, T., Moroi, K., Tanabe, N., Kamiyoshihara, H., Ishida, M., Yoshioka, K., Sato, H., Honda, C., Hayakawa, M., Kitazato, K., Sawada, H., and Sugita, S. (2019), Updated inflight calibration of Hayabusa2’s optical navigation camera (ONC) for scientific observations during the cruise phase, Icarus 325, 153-195, https://doi.org/10.1016/j.icarus.2019.01.015.
  • 吉岡和夫, 桑原正輝, 疋田伶奈, 荒尾昇吾, 吉川一朗, 超小型探査機搭載に向けた汚染防止用蓋開閉システムの開発, 宇宙航空研究開発機構研究開発報告, JAXA-RR-18-007, 1-9, 2019.

-2018-

  • Suzuki, F., Yoshioka, K., Hikida, R., Murakami, G., Tsuchiya, F., Kimura, T., and Yoshikawa, I., Co-rotation of Bright Features in the Io Plasma Torus, Geophys. Res. Space Phys. in press
  • Yoshioka, K., Tsuchiya, F., Kagitani, M., Kimura, T., Murakami, G., Fukuyama, D., Yamazaki, A., Yoshikawa, I., and Fujimoto, M., The influence of Io’s 2015 volcanic activity on Jupiter’s magnetospheric dynamics, Res. Lett. 45, 10193-10199, https://doi.org/10.1029/2018GL079264.
  • Tsuchiya, F., Yoshioka K., Kimura, T., Koga, R., Murakami, G., Yamazaki, A., Kagitani, M., Tao, C., Suzuki, F., Hikida, R., Yoshikawa, I., Kasaba, Y., Kita, H. Misawa, H., and Sakanoi, T., Enhancement of the Jovian Magnetospheric Plasma Circulation Caused by the Change in Plasma Supply from The Satellite Io, Geophys. Res. Space Phys. 123, 6514-6532, doi.org/10.1029/2018JA025316.
  • Hikida, R., Yoshioka, K., Murakami, G., Kimura, T., Tsuchiya, F., Yamazaki, A., Yoshikawa, I., and Iwagami, N. (2018). Identification of Extreme Ultraviolet Emission Lines of the Io Plasma Torus Observed by Hisaki/EXCEED, Geophys. Res. Planets, 123, 1723-1731, doi.org/10.1029/2018JE005629.
  • Koga, R., Tsuchiya, F., Kagitani M., Sakanoi, T., Yoneda, M., Yoshioka, K., Yoshikawa, I., Kimura, T., Murakami, G., Yamazaki, A., Smith, H. T., Bagenal, F., (2018). Spatial Distribution of Io’s Neutral Oxygen Cloud Observed by Hisaki, Geophys. Res. Space Physics, 123, doi:10.1029/2018JA025328.
  • Kimura, T., Hiraki, Y., Tao, C., Tsuchiya, F., Dlamere, P., Yoshioka, K., Murakami, G., Yamazaki, A., Kita, H., Badman, S., Fukazawa, K., Yoshikawa, I., and Fujimoto, M., (2018). Response of Jupiter’s Aurora to Plasma Mass Loading Rate Monitored by the Hisaki Satellite During Volcanic Eruptions at Io, Geophys. Res. Space Physics, 123, doi: 10.1002/2017JA025029.
  • Kuwabara, M., Taguchi, M., Yoshioka, K., Ishida, T., de Oliveira, N., Ito, K., Kameda, S., Suzuki, F., and Yoshikawa, I. (2018). Evaluation of hydrogen absorption cells for observations of the planetary coronas, Review of Scientific Instruments, Sci. Instrum., 89, 023111-1-10, doi:10.1063/1.5007812.
  • Tao, C., Kimura, T., Fuminori, T., Murakami, G., Yoshioka, K., Yamazaki, A., Badman, V. S., Misawa, H., Kita, H. Kasaba, Y., Yoshikawa. I., and Fujimoto, M. (2018). Variation of Jupiter’s aurora observed by Hisaki/EXCEED: 3. Volcanic control of Jupiter’s aurora, Res. Lett., 45, 71-79, doi:10.1002/2017GL075814.
  • Kameda, S., Ikezawa, S., Sato, M., Kuwabara, M., Osada, N., Murakami, G., Yoshioka, K., Yoshikawa, I., Taguchi, M., Funase, R., Sugita, S., Miyoshi, Y., and Fujimoto, M., Ecliptic North-South Symmetry of Hydrogen Geocorona, Res. Lett., 44, 11,706-11,712, doi:10.1002/2017GL075915.
  • Nara, Y., Yoshikawa, I., Yoshioka, K., Murakami, G., Kimura, T., Yamazaki, A., Tsuchiya, F., Kuwabara, M., and Iwagami, N. (2018). Extreme Ultraviolet Spectra of Venusian Airglow Observed by EXCEED, Icarus, in press
  • Koga, R., Tsuchiya, F., Kagitani, M., Sakanoi, T., Yoneda, M., Yoshioka, K., Kimura, T., Murakami, G., Yamazaki, A., Yoshikawa, I., and Smith, T. T. (2018). The time variation of atomic oxygen emission around Io during a volcanic event observed with Hisaki/EXCEED, Icarus, 299, 300-307. doi:10.1016/j.icarus.2017.07.024

-2017-

  • Tsuchiya, F., Yoshioka, K., Kimura, T., Murakami, G., Tao, C., Kita, H., Yoshikawa, I., Yamazaki, A., Kasaba, Y. (2017), Three-year of observations of Jupiter’s aurora and Io plasma torus variabilities by earth orbiting extreme-ultraviolet spectroscope HISAKI, Journal of Physics: Conference Series, Volume 869, Issue 1, article id. 012069, doi: 10.1088/1742-6596/869/1/012069.
  • Hozumi, Y., Saito, A., Yoshikawa, I., Yamazaki, A., Murakami, G., Yoshioka, K., and Chen, C.-H. (2017). Global distribution of the He+ column density observed by Extreme Ultra violet Imager on the International Space Station, Geophys. Res. Space Physics, 122(7), 7670-7682. doi:10.1002/2016JA023534
  • Yoshikawa, I., Suzuki, F., Hikida, R., Yoshioka, K., Murakami, G., Tsuchiya, F., Tao, C., Yamazaki, A., Kimura, T., Kita, H., Nozawa, H., and Fujimoto, M. (2017). Volcanic activity on Io and its influence on the dynamics of the Jovian magnetosphere observed by EXCEED/Hisaki in 2015, Earth, Planets and Space, 69(1), doi:10.1186/s40623-017-0700-9
  • Cho, Y., Kameda, S., Okuno, M., Horiuchi, M., Shibasaki, K., Wagatsuma, R., Aida, Y., Miura, Y. N., Yoshioka, K., Okazaki, R., and Sugita, S. (2017). Experimental characterization of elastometric O-rings as reusable seals for mass spectrometric measurements: Application to in situ K-Ar dating on Mars, Space Res., 60, 1453-1462.
  • Kimura, T., Nichols, J. D., Gray, R. L., Tao, C., Murakami, G., Yamazaki, A., Badman, S. V., Tsuchiya, F., Yoshioka, K., Kita, H., Grodent, D., Clark, G., Yoshikawa, I., and Fujimoto, M. (2017). Transient brightening of Jupiter’s aurora observed by the Hisaki satellite and Hubble Space Telescope during approach phase of the Juno spacecraft, Res. Lett., 44, doi:10.1002/2017GL072912.
  • Yoshioka, K., Tsuchiya, F., Kimura, T., Kagitani, M., Murakami, G., Yamazaki, A., Kuwabara, M., Suzuki, F., Hikida, R., Yoshikawa, I., Bagenal, F., and Fujimoto, M. (2017). Radial variation of sulfur and oxygen ions in the Io plasma torus as deduced from remote observations by Hisaki, Geophys. Res. Space Physics, 122, 2999-3012, doi:10.1002/2016JA023691.
  • Kuwabara, M., Yoshioka, K. Murakami, G., Tsuchiya, F., Kimura, T., Yamazaki, A., and Yoshikawa, I. (2017). The geocoronal responses to the geomagnetic disturbances, Geophys. Res. Space Physics, 122, 1269-1276, doi:10.1002/2016JA023247.
  • Masunaga, K., Seki, K., Terada, N., Tsuchiya, F., Kimura, T., Yoshioka, K., Murakami, G., Yamazaki, A., Tao, C., Leblanc, F., and Yoshikawa, I. (2017). Dawn-dusk difference of periodic oxygen EUV dayglow variations at Venus observed by Hisaki, Icarus, 292, 102-110.
  • 奥野衛, 吉岡和夫, 三浦弥生, 長勇一郎, 斉藤義文, 杉田精司, 火星探査におけるネオン測定に向けた分別膜の性能評価, 宇宙航空研究開発機構研究開発報告, JAXA-RR-16-009, 1-14, 2017.
  • 桑原正輝, 吉岡和夫, 村上豪, 鈴木文晴, 疋田伶奈, 吉川一朗, ヨウ化セシウムを蒸着したマイクロチャンネルプレートの感度の安定性に関する研究, 宇宙航空研究開発機構研究開発報告, JAXA-RR-16-011, 1-10, 2017.
  • 疋田伶奈, 吉岡和夫, 村上豪, 桑原正輝, 吉川一朗, ひさき衛星搭載の極端紫外分光撮像装置(EXCEED)の回折格子の性能評価, 宇宙航空研究開発機構研究開発報告, JAXA-RR-16-010, 1-14, 2017.

-2016-

  • Murakami, G., Yoshioka, K., Yamazaki, A., Nishimura, T., Yoshikawa, I., and Fujimoto, M. (2016). The plasmapause formation seen from meridian perspective by KAGUYA, Geophys. Res., 121, doi:10.1002/2016JA023377.
  • Murakami, G., Yoshioka, K., Yamazaki, A., Tsuchiya, F., Kimura, T., Tao, C., Kita, H., Kagitani, M., Sakanoi, T., Uemizu, K., Kasaba, Y., Yoshikawa, I., and Fujimoto, M. (2016). Response of Jupiter’s inner magnetosphere to the solar wind derived from extreme ultraviolet monitoring of the Io plasma tours, Res. Lett., 43, doi:10.1002/2016GL071675.
  • Cho, Y., Kameda, S., Miura, Y., Saito, Y., Yokota, S., Kasahara, S., Okazaki, R., Yoshioka, K., Shibasaki, K., Oishi, T., and Sugita, S. (2016), Conceptual Design of an In Situ K-Ar Isochron Dating Instrument for Future Mars Rover Missions, Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan 2016., 14, Pk_89-94, doi:10.2322/tastj.14.Pk_89.
  • Yoshikawa, I., Yoshioka, K., Murakami, G., Suzuki, F., Hikida, R., Yamazaki, A., Kimura, T., Tsuchiya, F., Kagitani, M., Sakanoi, T., Uemizu, K., Tao, C., Nozawa, N., Kasaba, Y., and Fujimoto, M. (2016), Properties of hot electrons in the Jovian inner magnetosphere deduced from extended observations of the Io Plasma Torus, Res. Lett., 43, 11,552-11,557, doi:10.1002/2016GL070706.
  • Tao, C., Kimura, T., Badman, S. V., Andre, N., Tsuchiya, F., Murakami, G., Yoshioka, K., Yoshikawa, I., YAMAZAKI, A., and Fujimoto, M. (2016), Variation of Jupiter’s Aurora Observed by Hisaki/EXCEED: 2. Estimations of Auroral Parameters and Magnetospheric Dynamics, Geophys. Res., Space Physics, 121, doi:10.1002/2015JA021272.
  • Tao, C., Kimura, T., Badman, S. V., Murakami, G., Yoshioka, K., Tsuchiya, F., André, N., Yoshikawa, I., Yamazaki, A., Shiota, D., Tadokoro, H., and Fujimoto, M. (2016), Variation of Jupiter’s aurora observed by Hisaki/EXCEED: 1. Observed characteristics of the auroral electron energies compared with observations performed using HST/STIS, Geophys. Res. Space Physics, 121, doi:10.1002/2015JA021271.
  • Kita, H., Kimura, T., Tao, C., Tsuchiya, F., Misawa, H., Sakanoi, T., Kasaba, Y., Murakami, G., Yoshioka, K., Yamazaki, A., Yoshikawa, I., and Fujimoto, M. (2016), Characteristics of solar wind control on Jovian UV auroral activity deciphered by long-term Hisaki EXCEED observations: Evidence of preconditioning of the magnetosphere?, Res. Lett., 43, 6790-6798, doi:10.1002/2016GL069481.
  • Kimura, T., Kraft, R. P., Elsner, R. F., Branduardi-Raymont, G., Gladstone, G. R., Tao, C., Yoshioka, K., Murakami, G., Yamazaki, A., Tsuchiya, F., Vogt, M. F., Masters, A., Hasegawa, H., Badman, S. V., Roediger, E., Ezoe, Y., Dunn, W. R., Yoshikawa, I., Fujimoto, M., and Murray, S. S. (2016), Jupiter’s X-ray and EUV auroras monitored by Chandra, XMM-Newton, and Hisaki satellite, Geophys. Res., 121, doi:10.1002/2015JA021893.
  • Badman, S., Bonfond, B., Fujimoto, M., Gray, R., Kasaba, Y., Kasahara, S., Kimura, T., Melin, H., Nichols, J., Steffl, A., Tao, C., Tsuchiya, F., Yamazaki, A., Yoneda, M., Yoshikawa, I., and Yoshioka, K. (2016), Weakening of Jupiter’s main auroral emission during January 2014, Res. Lett., 43, 988-997, doi:10.1002/2015GL067366.

-2015-

  • Tsuchiya, F., Kagitani, M., Yoshioka, K., Kimura, T., Murakami, G., Yamazaki, A., Nozawa, H., Kasaba, Y., Sakanoi, T., Uemizu, K., and Yoshikawa, I. (2015), Local electron heating in the Io plasma torus associated with Io from HISAKI satellite observation, Geophys. Res., 120, 10317-10333, doi:10.1002/2015JA021420.
  • Masunaga, K., Seki, K., Terada, N., Tsuchiya, F., Kimura, T., Yoshioka, K., Murakami, G., Yamazaki, A., Kagitani, M., Tao, C., Fedorov, A., Futaana, Y., Zhang, T., Shiota, D., Leblanc, F., Chaufray, J-Y., and Yoshikawa, I. (2015), Periodic variations of oxygen EUV dayglow in the upper atmosphere of Venus: Hisaki/EXCEED observations, Geophys. Res., Planets, 120, 2037-2052, doi:10.1002/2015JE004849.
  • Kimura, T., Badman, S. V., Tao, C., Yoshioka, K., Murakami, G., Yamazaki, A., Tsuchiya, F., Bonfond, B., Steffl, A., J., Masters, A., Kasahara, S., Hasegawa, H., Yoshikawa, I., Fujimoto, M., and Clarke, J. T. (2015), Transient internally-driven aurora at Jupiter discovered by Hisaki and the Hubble Space Telescope, Res. Lett., 42(6), 1662-1668, doi:10.1002/2015GL063272.

-2014-

  • Yoshioka, K., Murakami, G., Yamazaki, A., Tsuchiya, F., Kimura, T., Kagitani, M., Sakanoi, T., Uemizu, K., Kasaba, Y., Yoshikawa, I., and Fujimoto, M. (2014), Evidence for Global Electron Transportation into the Jovian Inner Magnetosphere, Science 345(6204), 1581-1583, doi:10.1126/science.1256259.
  • Yamazaki, A., Tsuchiya, F., Sakanoi, T., Uemizu, K., Yoshioka, K., Murakami, G., Kagitani, M., Kasaba, Y., Yoshikawa, I., Terada, N., Kimura, T., Sakai, S., Nakaya, N., Fukuda, S., and Sawai, S. (2014), Field-Of-View guiding camera on the HISAKI (SPRINT-A) satellite, Space Science Reviews, 184(1-4), 259-274.
  • Yoshikawa, I., Yoshioka K., Murakami, G., Yamazaki, A., Tsuchiya, F., Kagitani, M., Sakanoi, T., Terada, N., Kimura, T., Kuwabara, M., Fujiwara, K., Hamaguchi, T., and Tadokoro, H. (2014), Extreme Ultraviolet Radiation measurement for planetary atmospheres/magnetospheres from the Earth-orbiting spacecraft (Extreme Ultraviolet Spectroscope for Exospheric Dynamics: EXCEED), Space Science Reviews, 184(1-4), 237-258.
  • Uji, K., Yoshikawa, I., Yoshioka, K., Murakami, G., and Yamazaki, A. (2014), Observations of the Earth’s Ionosphere and Plasmasphere from International Space Station, Transactions of the Japan society for Aeronautical and Space Sciences, 12(ists29), Tn_47-Tn_50.
  • 吉川一朗, 吉岡和夫, 桂華邦裕, 江副祐一郎、太陽系プラズマの観測技術 -撮像観測-, プラズマ・核融合学会誌, 第90巻12号, 786–788, 2014.

-2013-

  • Yoshioka, K., Murakami, G., Yamazaki, A., Tsuchiya, A., Kagitani, M., Sakanoi, T., Kimura, T., Uji, K., and Yoshikawa, I. (2013), The extreme ultraviolet spectroscope for planetary science, EXCEED, Planetary and Space Science, 85, 250-260.
  • Murakami, G., Yoshikawa, I., Yoshioka, K., Yamazaki, A., Kagitani, M., Taguchi, M., Kikuchi, M., Kameda, S., and Nakamura, M. (2013), Plasmaspheric filament: an isolated magnetic flux tube filled with dense plasmas, Res. Lett., 40, 250-254.

-2012-

  • Yoshioka, K., Homma, T., Murakami, G., and Yoshikawa, I. (2012), High Sensitivity MCP Detectors for Space EUV Missions, Sci. Instrum., 83, 083117-1-6.
  • Yoshioka, K., Murakami, G., Yoshikawa, I., Maria, J.-L., Mariscal, J.-F., Rouanet, N., Mine, P.-O., and Quémerais, E. (2012), Optical performance of PHEBUS/EUV detector onboard BepiColombo, Space Res., 49, 1265-1270.
  • Yoshioka, K., Yoshikawa, I., Tsuchiya, F., Kagitani, M., Murakami, G., Sakai, K., and Homma, T. (2012), Feasibility study of EUV spectroscopic observation of the Io plasma torus from the Earth-orbiting satellite EXCEED, Space Sci., 62, 104-110.
  • 長勇一郎, 諸田智克, 三浦弥生, 亀田真吾, 吉岡和夫, 他25名, その場年代計測装置による月惑星年代学探査, 日本惑星科学会誌, Vol. 21, No.3, 267-275, 2012.

-2011-

  • Yoshikawa, I., Homma, T., Sakai, K., Murakami, G., Yoshioka, K., Yamazaki, A., Sakanoi, T., and Saito, A. (2011), Imaging observation of the Earth’s plasmasphere and ionosphere by EUVI of ISS-IMAP on the International Space Station, IEEJ Trans. Fund. Mater., 131, 1006-1010.
  • Yoshioka, K., Murakami, G., Tsuchiya, F., Kagitani, M., and Yoshikawa, I. (2011), Hot electron component in the Io plasma torus confirmed through EUV spectral analysis, Geophys. Res. 116, A09204.
  • Yoshikawa, I., Murakami, G., Ogawa, G., Yoshioka, K., Obana, Y., Taguchi, M., Yamazaki, A., Kameda, S., Nakamura, M., Kikuchi, M., Kagitani, M., Okano, S., Miyake, W. (2011), Plasmaspheric EUV image seen from the lunar orbit: Initial Result of Extreme Ultraviolet Telescope onboard KAGUYA spacecraft, Geophys.. Res., 115, A04217.
  • Murakami, G., Sakai, K., Homma, T., Yoshioka, K., Yoshikawa, I., Ichimaru, S., and Takenaka, H. (2011), Performance of Y2O3/Al multilayer coatings for the He-II radiation at 30.4 nm, Sci. Instrum., 82, 033106-1-4.

-2010-

  • Yoshikawa, I., Yoshioka, K., Murakami, G., Ogawa, G., Ueno, M., Yamazaki, A., Uemizu, K., Kameda, S., Tsuchiya, F., Kagitani, M., Terada, M., and Kasaba, Y. (2010), THE EXCEED MISSION, Geosci., 25, 29-41.
  • Tsuchiya, F., Kagitani, M., Terada, N., Kasaba, Y., Yoshikawa, I., Murakami, G., Homma, T., Sakai, K., Yoshioka, K., Yamazaki, A., Uemizu, K., Kimura, T., and Ueno, M. (2010), Plan for observing magnetospheres of outer planets by using the EUV spectrograph onboard the SPRINT-A/EXCEED mission, Geosci., 25, 57-71.
  • Kagitani, M., Taguchi, M., Yamazaki, A., Yoshikawa, I., Murakami, G., Yoshioka, K., Kameda, S., and Okano, S. (2010), Variation in lunar sodium exosphere measured from lunar orbiter SELENE (Kaguya), Space Sci., 58, 1660-1664.
  • Murakami, G., Yoshikawa, I., Obana, Y., Yoshioka, K., Ogawa, G., Yamazaki, A., Kagitani, M., Taguchi, M., Kikuchi, M., Kameda, S., and Nakamura, M. (2010), First sequential images of the plasmasphere from the meridian perspective observed by KAGUYA, Earth, Planets Space, 62, e9-e12.
  • Murakami, G., Yoshioka, K., and Yoshikawa, I. (2010), A high-resolution imaging detector using five microchannel plates and a resistive anode encoder, Opt., 49, 17.
  • Yoshioka, K., Murakami, G., Yoshikawa, I., Ueno, M., Uemizu, K., Yamazaki, A. (2010), EUV observation from the Earth-orbiting satellite, EXCEED, Space Res., 45, 314-321.
  • Chassefière, E., Maria, J.-L., Goutail, J.-P., Quémerais, E., Leblanc, F., Okano, S., Yoshikawa, I., Korablev, O., Gnedykh, V., Naletto, G., Nicolosi, P., Pelizzo, M.-G., Correia, J.-J., Gallet, S., Hourtoule, C., Mine, P.-O., Montaron, C., Rouanet, N., Rigal, J.-B., Muramaki, G., Yoshioka, K., Kozlov, O., Kottsov, V., Moisseev, P., Semena, N., Bertaux, J.-L., Capria, M.-Th., Clarke, J., Cremonese, G., Delcourt, D., Doressoundiram, A., Erard, S., Gladstone, R., Grande, M., Hunten, D., Ipp, W., Izmodenov, V., Jambon, A., Johnson, R., Kallio, E., Killen, R., Lallement, R., Luhmann, J., Mendillo, M., Milillo, A., Palme, H., Potter, A., Sasaki, S., Slater, D., Sprague, A., Stern, A., and Yan, N. (2010), PHEBUS: A double ultraviolet spectrometer to observe Mercury’s exosphere, Space Sci., 58(1-2), 201-223.
  • Yoshikawa, I., Korablev, O., Kameda, S., Rees, D., Nozawa, H., Okano, S., Gnedykh, V., Kottsov, V., Yoshioka, K., Murakami, G., Ezawa, F., Cremonese, G. (2010), The Mercury Sodium Atmospheric Spectral Imager for the MMO Spacecraft of Bepi-Colombo, Space Sci., 58(1-2), 224-237.
  • Yoshioka, K., Murakami, G., and Yoshikawa, I. (2010), Optimization of the MCP Detector for the BepiColombo Mission, Transactions of the Japan society for aeronautical and space sciences, space technology Japan 7, Tk_57-Tk_60.
  • Murakami, G., Yoshioka, K., and Yoshikawa, I. (2010), Development of the High-resolution FUV detector for the BepiColombo Mission, Transactions of the Japan society for aeronautical and space sciences, space technology Japan 7, Pk_1-Pk_6.
  • Yoshikawa, I., Yamazaki, A., Murakami, G., Ezawa, F., Yoshioka, K., Kameda, S., Miyake, W., Taguchi, M., Kikuchi, M., Nakamura, M., Sakanoi, T., and Okano, T. (2010), Observation of the Near-Earth Plasmas by Telescope of Extreme Ultraviolet (TEX) Onboard SELENE: Science from the Moon, Transactions of the Japan society for aeronautical and space sciences, space technology Japan 7, Tk_27-Tk_32.

-2009-

  • Taguchi, M., Sakanoi, T., Okano, S., Kagitani, M., Kikuchi, M., Ejiri, M., Yoshikawa, I., Yamazaki, A., Murakami, G., Yoshioka, K., Kameda, S., Miyake, W., Nakamura, M., and Shiokawa, K. (2009), The Upper Atmosphere and Plasma Imager / the Telescope of Visible Light (UPI/TVIS) onboard the Kaguya Spacecraft, Earth, Planets Space, 61(12), xvii-xxiii.
  • Kagitani, M., Taguchi, M., Yamazaki, A., Yoshikawa, I., Murakami, G., Yoshioka, K., Kameda, S., Ezawa, F., Toyota, T., and Okano, S. (2009), First optical observation of the Moon’s sodium exosphere from the lunar orbiter SELENE (Kaguya), Earth, Planets Space, 61, 1025-1029.

-2008-

  • Yoshikawa, I., Murakami, G., Ezawa, F., Yoshioka, K., Obana, Y., Taguchi, M., Yamazaki, A., Kameda, S., Nakamura, M., Kikuchi, M., Kagitani, M., Okano, S., Shiokawa, K., and Miyake, W. (2008), Telescope of Extreme Ultraviolet boarded on KAGUYA: Science from the Moon, Geosci., 19, 109-121.
  • Yoshikawa, I., Ono, J., Yoshioka, K., Murakami, G., Ezawa, F., Toyota, T., Kameda, S., and Ueno, S. (2008), Observation of Mercury’s sodium exosphere during the transit on November 9, 2006, Space Sci., 56, 1676-1680.
  • Yoshikawa, I., Yamazaki, A., Murakami, G., Yoshioka, K., Kameda, S., Ezawa, F., Toyota, T., Miyake, W., Taguchi, M., Kikuchi, M., Sakanoi, T., and Okano, S. (2008), Telescope of extreme ultraviolet (TEX) onboard SELENE: science from the Moon, Earth, Planets Space, 60, 407–416.
  • Yoshioka, K., Hikosaka, K., Murakami, G., Yoshikawa, I., Yamazaki, A., Nozawa, H. (2008), Development of the EUV detector for the BepiColombo mission, Space Res., 41/9, 1392-1396.
  • Yoshioka, K., Hikosaka, K., Kameda, S., Nozawa, H., Yamazaki, A., Yoshikawa, I. (2008), Mercury sodium atmosphere explored by the BepiColombo mission, Space Res., 41/9, 1386-1391.
  • 村上豪, 江沢福紘, 吉岡和夫, 豊田丈典, 吉川一朗, 山崎敦, BepiColombo水星探査計画に向けた遠紫外光検出器の位置分解能向上に関する研究, 宇宙航空研究開発機構研究開発報告, JAXA-RR-07-017, 1-8, 2008.

-2007-

  • Yoshikawa, I., Kameda, S., Matsuura, K., Hikosaka, K., Murakami, G., Yoshioka, K., Nozawa, H., Rees, D., Okano, S., Misawa, H., Yamazaki, A., Korablev, O. (2007), Observation of Mercury’s sodium exosphere by MSASI in the BepiColombo mission, Space Sci., 55, 1622-1633.
  • Tanaka, Y. T., Yoshikawa, I., Yoshioka, K., Terawasa, T., Saito, Y., and Mukai, T. (2007), Gamma-ray detection efficiency of the microchannel plate installed as an ion detector in the low energy particle instrument onboard the GEOTAIL satellite, Sci. Instrum., 78, 034501-1-034501-4.
  • 村上豪, 吉岡和夫, 山崎敦, 吉川一朗, 笠羽康正, 超高層大気撮像観測小型衛星(IMAP)搭載に向けたMg/SiC多層膜反射鏡の開発, 宇宙航空研究開発機構研究開発報告, JAXA-RR-06-019, 1-8, 2007.

-2006-

  • 吉岡和夫, 彦坂健太郎, 村上豪, 野澤宏大, 山崎敦, 吉川一朗, 笠羽康正, BepiColombo水星探査計画にむけた極端紫外光検出器(MCP)の量子効率向上に関する研究, 宇宙航空研究開発機構研究開発報告, JAXA-RR-05-022, 1-14, 2006.
  • 彦坂健太郎, 亀田真吾, 野澤宏大, 吉岡和夫, 山崎敦, 吉川一朗, 笠羽康正, 水星大気の生成メカニズムに関する研究 ~MMO搭載機器MSASIでの観測に向けて~, 宇宙航空研究開発機構研究開発報告, JAXA-RR-05-021, 1-16, 2006.

 

受賞歴

  • 地球電磁気・惑星圏学会第126回講演会学生発表賞(オーロラメダル)(2009年9月)
  • 平成21年度 東京大学理学系研究科研究奨励賞(博士)(2010年3月)
  • COSPAR OUTSTANDING PAPER AWARD FOR YOUNG SCIENTISTS(2010年7月)

https://cosparhq.cnes.fr/awards/young-scientists-award

  • 公益財団法人宇宙科学振興会 第7回宇宙科学奨励賞(2015年3月)  
  • 地球電磁気・惑星圏学会 大林奨励賞(2016年11月)
  • 平成31年度科学技術分野の文部科学大臣表彰(若手科学者賞)(2019年4月)