JpGU Meeting 2019
Session outline| Space and Planetary Sciences (P) | ||
|---|---|---|
| Session Sub-category | Planetary Sciences(PS) | |
| Session ID | P-PS02 | |
| Title | Regolith Science | |
| Short Title | Regolith Science | |
| Main Convener | Name | Koji Wada |
| Affiliation | Planetary Exploration Research Center, Chiba Institute of Technology | |
| Co-Convener 1 | Name | Akiko Nakamura |
| Affiliation | Graduate School of Science, Kobe University | |
| Co-Convener 2 | Name | Patrick Michel |
| Affiliation | Observatoire De La Cote D'Azur | |
| Co-Convener 3 | Name | Kevin John Walsh |
| Affiliation | Southwest Research Institute Boulder | |
| Session Language | E | |
| Scope | Recent planetary explorations have revealed that almost all solid bodies in the solar system are covered with small particles, called regolith. The surface geology, especially regolith behavior on the surfaces of solid bodies, becomes increasingly more important as represented by Hayabusa mission and other on-going and planned sample-return missions such as Hayabusa2, OSIRIS-REx, and MMX. For fully understanding the regolith science, it is required to know and compare the regolith conditions on various celestial bodies, from asteroids to planets, with various methods. Therefore, this session welcomes broad topics related to regolith on various celestial bodies, such as asteroids, comets, the Moon, the martian moons, Mars, etc. Papers on the formation, evolution, and alteration processes of regolith particles and regolith systems on the surface of planetary bodies, remote and in-situ observational results and techniques, analyses and results of returned samples, and laboratory, numerical, and theoretical studies on the fundamental physical and chemical processes are all welcome. Note that what we call regolith is not just fine grains: all kinds of materials (more or less loose) that lie on the surface, from cobbles to finer grains, are our targets. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Erica R Jawin (National Museum of Natural History) Naoya Sakatani (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) Hajime Yano (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency) Mitsuhisa Baba (Japan Aerospace Exploration Agency) Naohiro Uyama (Shimizu corporation) Masahiro KAYAMA (Department of Earth and Planetary Material Sciences, Faculty of Science, Tohoku University) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 29 PM1 | ||||
| 13:45 - 14:00 | PPS02-01 | Moganite in a lunar meteorite as a trace of H2O ice in the lunar regolith | Masahiro KAYAMA | |
| 14:00 - 14:15 | PPS02-02 | Simulating the Lunar Soil: a Japanese Lunar Soil Simulant FJS-1 and Its Properties | Naohiro Uyama | |
| 14:15 - 14:30 | PPS02-03 | Experimental estimation of regolith scattering behavior when a space lander touches on a planetary body | Mitsuhisa Baba | |
| 14:30 - 14:45 | PPS02-04 | Ray systems in granular cratering | Tapan Sabuwala | |
| 14:45 - 15:00 | PPS02-05 | Scaling of oblique impact cratering onto inclined granular layer | Hiroaki Katsuragi | |
| 15:00 - 15:15 | PPS02-06 | Experimental study on gravitational effects on crater size formed by low-velocity impacts into granular media | Masato Kiuchi | |
| Oral Presentation May 29 PM2 | ||||
| 15:30 - 15:45 | PPS02-07 | Impact Ejecta Environment of an Eccentric Asteroid: 3200 Phaethon | Jamey Szalay | |
| 15:45 - 16:00 | PPS02-08 | On the Detection of an Ejecta Dust Cloud Around Asteroid (3200) Phaethon by the DESTINY+ Dust Analyzer | Hiroshi Kimura | |
| 16:00 - 16:15 | PPS02-09 | Close-up thermal and optical observation of asteroid Ryugu | Naoya Sakatani | |
| 16:15 - 16:30 | PPS02-10 | In-Situ Investigation of Asteroid (162173) Ryugu by the Hayabusa2 MASCOT Lander | Hajime Yano | |
| 16:30 - 16:45 | PPS02-11 | Evidence of Mass Movement and Boulder Transport on Bennu from NASA's OSIRIS-REx Space Mission | Erica R Jawin | |
| 16:45 - 17:00 | PPS02-12 | Resurfacing processes on small asteroids constrained by crater size distributions on Ryugu, Itokawa, and Eros | Naofumi Takaki | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 29 AM2 | |||
| PPS02-P01 | Abrasion experiments of mineral and meteorite grains: Dependence of particle size and vibration rate on abrasion rate and its application to Itokawa and lunar regolith particles. | Hirotaka Yamaguchi | |
| PPS02-P02 | Measurements of adhesive force of meteorite powders using centrifugal method | Yuuya Nagaashi | |
| PPS02-P03 | Laboratory impact penetration experiments conducted at simulated reduced gravity | Akiko Nakamura | |
| PPS02-P04 | MARAUDERS: Using instrumented nano-impactors to probe the icy properties of Lunar permanently shadowed regions | Ronald Ballouz | |
| PPS02-P05 | Surface size-frequency distribution of accumulating boulders using discrete element simulations of spherical particles in 3D | Hiroshi Kikuchi | |
| PPS02-P06 | Experimental Study to Determine the Best Compression Ratio of High-Resolution Images of Small Bodies for the Martian Moons eXploration (MMX) Mission | Yuta Shimizu | |