*Naotaka Tomioka¹, Akira Yamaguchi², Motoo Ito¹, Masayuki Uesugi³, Naoya Imae², Naoki Shirai^4,5, Takuji Ohigashi^6,7, Makoto Kimura², Ming-Chang Liu^8,9, Richard C Greenwood¹⁰, Kentaro Uesugi³, Aiko Nakato¹¹, Kasumi Yogata¹¹, Hayato Yuzawa⁶, Yu Kodama^12,13, Kaori Hirahara¹⁴, Ikuya Sakurai¹⁵, Ikuo Okada¹⁵, Yuzuru Karouji¹¹, Keishi Okazaki¹⁶, Kosuke Kurosawa¹⁷, Takaaki Noguchi¹⁸, Akira Miyake¹⁸, Masaaki Miyahara¹⁶, Yusuke Seto¹⁹, Toru Matsumoto¹⁸, Yohei Igami¹⁸, Hayabusa2 Curation Team, Tomohiro Usui¹¹, Sei-ichiro Watanabe¹⁵, Yuichi Tsuda¹¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute of Polar Research, 3.Japan Synchrotron Radiation Research Institute, 4.Tokyo Metropolitan University, 5.Kanagawa University, 6.Institute for Molecular Science, 7.High Energy Accelerator Research Organization, 8.UCLA, 9.Lawrence Livermore National Laboratory, 10.The Open University, 11.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 12.Marine Works Japan, Ltd., 13.Toyo Corporation, 14.Osaka University, 15.Nagoya University, 16.Hiroshima University, 17.Chiba Institute of Technology, 18.Kyoto University, 19.Osaka Metropolitan University)

*Manamu Miyazoe^1,2, Keishi Okazaki^1,2, Dyuti Prakash Sarkar¹ (1.Hiroshima University, 2.Kochi Institute for Core Sample Research, x-star, JAMSTEC)

*Bunrin Natsui¹, Shintaro Azuma¹, Keishi Okazaki², Kentaro Uesugi³, Masahiro Yasutake³, Ryuichi Nomura⁴ (1.Tokyo Institute of Technology, 2.Hiroshima University, 3.JASRI, 4.Kyoto University)

*Mizuki Ueda^1,2, Keishi Okazaki^2,1, Asuka Yamaguchi³, Yohei Hamada² (1.Hiroshima University, 2.Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research, 3.Atomosphere and Ocean Research Institute, The University of Tokyo)

*Samuele Papeschi¹, Kenta Kawaguchi^1,2, Keishi Okazaki^1,3, Takehiro Hirose¹ (1.JAMSTEC Kochi (X-Star), 2.Kyushu University, 3.Hiroshima University)

*Keishi Okazaki^1,2, Greg Hirth³ (1.Hiroshima University, 2.Kochi Institute for Core Sample Research, x-star, JAMSTEC, 3.Brown University)

*Keishi Okazaki^1,2 (1.Earth and Planetary Systems Science Program, Hiroshima University, 2.Kochi Institute for Core Sample Research, x-star, JAMSTEC)