[P-PS07] Solar System Small Bodies: Explorations of Ryugu, Bennu, and the Solar System at Large

convener:Taishi Nakamoto(Tokyo Institute of Technology), Tatsuaki Okada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Dante S Lauretta(University of Arizona), Masateru Ishiguro(Department of Physics and Astronomy, Seoul National University)

Small Solar System bodies, including asteroids, comets, satellites, and inter-planetary dust particles, are interesting and provide lots of information on the origin and evolution of our Solar System. They can be remotely sensed by telescopes, be visited by spacecraft and studied at high resolution in a variety of wavelengths from IR to visible, UV, X-rays, and gamma rays, and even with neutrons. In addition, recently spacecrafts have been sent to return samples. In this session, all the contributions on the small solar system bodies are welcome. But this year, we especially welcome contributions on recent advances on the study of Ryugu and Bennu whether obtained by rendezvous spacecraft, remote sensing, or other methods.

+Add all to schedule

[PPS07-06] Artificial impact crater formed by Small Carry-on Impactor on the asteroid 162173 Ryugu in the gravity-dominated regime

★Invited Papers

*Masahiko Arakawa¹, Takanao Saiki², Toshihiko Kadono³, Yasuhiko Takagi⁴, Koji Wada⁵, Yu-ichi Iijima², Hiroshi Imamura², Chisato Okamoto¹, Yuri Shimaki², Kei Shiai¹, Satoru Nakazawa², Masahiko Hayakawa², Naru Hirata⁶, Hajime Yano², Hirotaka Sawada², Kazunori Ogawa², Rie Honda⁷, Ko Ishibashi⁵, Naoya Sakatani², Tomoaki Toda², Hajime Hayakawa², Seiji Sugita⁸, Tomokatsu Morota⁸, Shingo Kameda⁹, ERI TATSUMI¹³, Chikatoshi Honda⁶, yokota yasuhiro², Toru Kouyama¹⁰, Manabu Yamada⁵, Hidehiko Suzuki¹¹, Kazuo Yoshioka⁸, Yuichiro Cho⁸, Moe Matsuoka², Patrick Michel¹² (1.Kobe University, 2.Japan Aerospace Exploration Agency, 3.University of Occupational and Environmental Health, 4.Aichi Toho University, 5.Chiba Institute of Technology, 6.University of Aizu, 7.Kochi University, 8.The University of Tokyo, 9.Rikkyo University, 10.National Institute of Advanced Industrial Science and Technology, 11.Meiji University, 12.Observatoire de la Côte d'Azur, 13.Instituto de Astrofisica de Canarias)

[PPS07-07] Assessing the Small carry-on Impactor debris operated by the Hayabusa2 mission: an evaluation by FT-IR, micro-Raman, STXM and NanoSIMS.

*Motoo Ito¹, Yoshinori Takano², Takuji Ohigashi³, Hayato Yuzawa³, Yoko Kebukawa⁴, Kento Kiryu⁴, Masayuki Uesugi⁵, Naotaka Tomioka¹, Yu Kodama⁷, Hiroshi Naraoka⁶, Toru Yada⁸, Masanao Abe⁸ (1.Kochi Institute for Core Sample Research, JAMSTEC, 2.Biogeochemistry Program, JAMSTEC, 3.UVSOR, Institute for Molecular Science, 4.Yokohama National University, 5.JASRI, 6.Kyushu University, 7.Marine Works Japan, 8.JAXA)

[PPS07-08] Subsurface structure inferred from the relation between craters and their surrounding boulders on asteroid Ryugu

*Sei-ichiro WATANABE^1,2, Hiroki Akahane¹, Tomokatsu Morota^3,1, Tatsuhiro Michikami⁴, Naru Hirata⁵, Naoyuki Hirata⁶, Yuri Shimaki², Rina Noguchi², Rie Honda⁷, Shingo Kameda⁸, Manabu Yamada⁹, Naoya Sakatani², Kazunori Ogawa², ERI TATSUMI¹⁰, Toru Kouyama¹¹, yokota yasuhiro^2,7, Yuichiro Cho³, Hidehiko Suzuki¹², Masahiko Hayakawa², Moe Matsuoka², Chikatoshi Honda⁵, Kazuo Yoshioka³, Hirotaka Sawada², Seiji Sugita³, Masahiko Arakawa⁶, Hayabusa2 Science Team¹³ (1.Nagoya University, 2.JAXA, 3.University of Tokyo, 4.Kindai University, 5.University of Aizu, 6.Kobe University, 7.Kochi University, 8.Rikyo University, 9.Chiba Institute of Technology, 10.University of La Laguna, 11.National Institute of Advanced Industrial Science and Technology, 12.Meiji University, 13.Hayabusa2 Project)

[PPS07-09] Highly Porous Asteroid 162173 Ryugu Derived from Lowest Temperatures in a Day

*Tatsuaki Okada^1,2, Tetsuya Fukuhara³, Satoshi Tanaka¹, Takehiko Arai⁴, Naoya Sakatani¹, Yuri Shimaki¹, Hiroki Senshu⁵, Hirohide Demura⁶, Kentaro Suko⁶, Tomohiko Sekiguchi⁷, Toru Kouyama⁸, Ayumu Ohsugi^1,2 (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.University of Tokyo, 3.Rikkyo University, 4.Ashikaga University, 5.Chiba Institute of Technology, 6.University of Aizu, 7.Hokkaido University of Education, 8.National Institute of Advanced Industrial Science and Technology)

[PPS07-10] Thermophysical Properties of Ryugu Estimated from a Box-A Observation

*Yuri Shimaki¹, Hiroki Senshu², Naoya Sakatani¹, Tatsuaki Okada^1,3, Tetsuya Fukuhara⁴, Satoshi Tanaka^1,5, Makoto Taguchi⁴, Takehiko Arai⁶, Hirohide Demura⁷, Kentaro Suko⁷, Tomohiko Sekiguchi⁸, Toru Kouyama⁹, Jun Takita¹⁰, Sunao Hasegawa¹ (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.Chiba Institute of Technology, 3.University of Tokyo, 4.Rikkyo University, 5.The Graduate University for Advanced Studies, SOKENDAI, 6.Ashikaga University, 7.University of Aizu, 8.Hokkaido University of Education, 9.National Institute of Advanced Industrial Science and Technology (AIST), 10.Hokkaido Kitami Hokuto High School)