@Graduate School of Science
@Faculty of Science
- e-mail: minami.yasui(at)pearl.kobe-u.ac.jp
- Office: Science and Technology Bldg 3, Room 618
- Mailing address:
Department of Planetology, Graduate School of Science, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, JAPAN
- Experimental Planetary Science Laboratory URL
Icy bodies in the solar system, e.g., icy satellites, comets, and KBOs, are composed of ices, rocks, organic matters and metal. I'm interested in the thermal evolutions and the formation processes of tectonic features (glaciers, faults, etc.) observed on the surfaces of icy bodies. To clarify them, I perform deformation experiment of water ice mixed with silica powder simulating planetary dusts and examine the compression strength, viscosity and brittle failure strength.
Furthermore, I'm interested in the collisional phenomena and the cratering processes of planetesimals, asteroids and small icy satellites. I perform impact experiments by using porous materials (snow, gypsum, etc.) simulating these porous bodies and the materials having multiple components (ice-rock mixtures, gypsum-silica powder mixtures, etc.) to study the impact strength and the ejecta velocity.
- Yasui, M., "Present and future of glaciology in solar system", Scientific journal published by the Japanese Society of Snow and Ice "SEPPYO" 79 (1), 117-132, 2017 (in Japanese).
- Yasui, M., Matsumoto, E., and Arakawa, M., "Experimental study on impact-induced seismic wave propagation through granular materials", Icarus 260, 320-331, 2015.
- Yasui, M. (sharing writing) "Japanese Dictionary of Snow and Ice", Editing by The Japanese Society of Snow and Ice, Kokon-Shoin, 2014 (in Japanese).
- Yasui, M., Hayama, R., and Arakawa, M., "Impact strength of small icy bodies that experienced multiple collisions", Icarus 233, 293-305, 2014.
- Yasui, M., Arakawa, M., Hasegawa, S., Fujita, Y., and Kadono, T., "In situ flash X-ray observation of projectile penetration processes and crater cavity growth in porous gypsum target analogous to low-density asteroids", Icarus 221, 646-657, 2012.
- Yasui, M. and Arakawa, M., "Impact experiments of porous gypsum-glass bead mixtures simulating parent bodies of ordinary chondrites: Implications for re-accumulation processes related to rubble-pile formation", Icarus 214, 387-395, 2011.
- Yasui, M. and Arakawa, M., "Rate-dependent strength of porous ice-silica mixtures and its implications for the shape of small to middle-sized icy satellites", Icarus 210, 956-967, 2010.
- Yasui, M. and Arakawa, M., "Compaction experiments of ice-silica particle mixtures: Implication for residual porosity of small icy bodies", J. Geophys. Res. 114, E09004, doi:10.1029/2009JE003374, 2009.