Session Details

[P-PS03]Small Solar System Bodies: New perspectives on the origin and evolution of the Solar System

Wed. May 24, 2023 3:30 PM - 4:45 PM JST
Wed. May 24, 2023 6:30 AM - 7:45 AM UTC
301A International Conference Hall, Makuhari Messe
convener:Tatsuaki Okada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Fumi Yoshida(University of Occupational and Environmental Health, Japan), Sota Arakawa(Japan Agency for Marine-Earth Science and Technology), Ryota Fukai(Japan Aerospace Exploration Agency), Chairperson:Fumi Yoshida(University of Occupational and Environmental Health, Japan), Tatsuaki Okada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Sota Arakawa(Japan Agency for Marine-Earth Science and Technology), Ryota Fukai(Japan Aerospace Exploration Agency)

Small Solar System bodies including asteroids, comets, satellites, and the interplanetary dust particles (IDPs) preserve clues for the understanding of the origin and evolution of the Solar System and the investigation of the sources of the building blocks of life. Many discoveries have been made in recent years by the ground-based and space-borne observations and the direct in situ explorations using spacecrafts. Evident and precise data on the origin and evolution of the Solar System have been obtained by analyses of extraterrestrial materials such as meteorites, IDPs, and the samples returned by space missions. New insights are expected by the collaboration of these data-based results with theoretical and experimental studies. In this session. new results of theoretical, experimental and observational studies on small Solar System bodies are focused, as well as the latest results of remote sensing and sample analysis by Hayabusa2, OSIRS-REx , and DART missions. Scientific expectations are also discussed for the high-sensitive large-area observatories such as LSST and JWST and for the future planetary missions like Hayabusa2#, MMX, Destiny+, Hera, and Comet Interceptor, Lucy, and Psyche. Topics on the science and instruments of the Japanese next small body mission whose working group studies are just started as well as the studies for the planetary defense are also within the scope of this session.

[PPS03-18]Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation: A comprehensive dynamical model for the inner solar system

*Patryk Sofia Lykawka1, Takashi Ito2 (1.Kindai University, 2.National Astronomical Observatory of Japan)

[PPS03-19]Change of asteroid rotation rates by collisional disruption: Implication for observation and collisional evolution

*Keiji Ohtsuki1, Chihiro Semba1, Keisuke Sugiura2, Ryo Suetsugu3 (1.Graduate School of Science, Kobe University, 2.Earth-Life Science Institute, Tokyo Institute of Technology, 3.National Institute of Technology, Oshima College)

[PPS03-20]Ejecta plume evolution observed in the Hayabusa2 impact experiment on Ryugu

*Shota Kikuchi1, Koji Wada2, Kei Shirai3, Ko Ishibashi2, Toshihiko Kadono4, Rie Honda5, Yasuhiro Yokota6, Yuri Shimaki6, Naoya Sakatani7, Kazunori Ogawa6, Hirotaka Sawada6, Masahiko Arakawa3 (1.National Astronomical Observatory of Japan, 2.Chiba Institute of Technology, 3.Kobe University, 4.University of Occupational and Environmental Health, 5.Ehime University, 6.Japan Aerospace Exploration Agency, 7.Rikkyo University)

[PPS03-21]Spectroscopic and photometric properties of (98943) 2001 CC21, the target of Hayabusa2# space mission

*Marcel M. Popescu1, ERI TATSUMI2, Julia de León2, Javier Licandro2, David Morate2, Gabriel N. Simion3, Jin Beniyama4, Masatoshi Hirabayashi5 (1.Astronomical Institute of the Romanian Academy, 5 Cuţitul de Argint, 040557 Bucharest, Romania (mpopescu-ext@iac.es), 2.Instituto de Astrofísica de Canarias, C/ Vía Láctea, 38205 La Laguna, España, 3.University of Amsterdam, Faculty of Science, 1090 GE Amsterdam, The Netherlands, 4.Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan, 5.Auburn University, Auburn, AL, USA)

[PPS03-22]The discovery of the source of the EL meteorites.

*Chrysa Avdellidou1, Marco Delbo1, Alessandro Morbidelli1, Kevin J. Walsh2, Edhah Munaibari1, Joules Bourdelle de Micas3, Maxime Devogele4, Sonia Fornasier3, Matthiew Gounelle5, Gerard van Belle6 (1.Observatoire de la Cote dAzur, 2.Southwest Research Institute, 3.LESIA, Observatoire de Paris, MEUDON, 4.Arecibo Observatory, 5.Museum National dHistoire Naturelle, 6.Lowell Observatory)