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Minami YASUI

 Associate Professor
 Graduate School of Science
 Faculty of Science


  • e-mail: minami.yasui(at)pearl.kobe-u.ac.jp
  • Office: Science and Technology Bldg 3, Room 102
  • 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


Research Interests:

   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.


Recent Publications: 

  • Arakawa, M., Okazaki, M., Nakamura, M., Jutzi, M., Yasui, M., and Hasegawa, S., “Dispersion and shattering strength of rocky and frozen planetesimals studied by laboratory experiments and numerical simulations”, Icarus 373, 114777, 2022.
  • Yasui, M., Tazawa, T., Hashimoto, R., Arakawa, M., Ogawa, K., “Impacts may provide heat for aqueous alteration and organic solid formation on asteroid parent bodies”, Commun. Earth Environ. 2, 95, 2021.
  • Honda, R., Arakawa, M., Shimaki, Y., Shirai, K., Yokota, Y., Kadono, T., et al. (12th), “Resurfacing processes on asteroid (162173) Ryugu caused by an artificial impact of Hayabusa2’s Small Carry-on Impactor”, Icarus 366, 114530, 2021.
  • Matsue, K., Yasui, M., Arakawa, M., Hasegawa, S., "Measurements of seismic waves induced by high-velocity impacts: Implications for seismic shaking surrounding impact craters on asteroids”, Icarus 338, 113520, 2020.
  • Yasui, M., Arakawa, M., Yoshida, Y., Matsue K., Takano, S., "Effects of oblique impacts on the impact strength of porous gypsum and glass spheres: Implications for the collisional disruption of planetesimals and thermal evolution", Icarus 335, 113414, 2020.
  • Yasui, M., Schulson, E. M., and Renshaw, C. E., "Experimental studies on mechanical properties and ductile-to-brittle transition of ice-silica mixtures: Young’s modulus, compressive strength and fracture toughness", J. Geophys. Res. -Solid Earth 122 (8), 6014-6030, 2017.
  • 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.


Academic Associations: 



UPDATE: 01/Apr./2022

     

Department of Planetology, Graduate School of Science, Kobe University

ADDRESS
1-1, Rokkodai-cho, Nada-ku, Kobe, Hyogo, Japan, 657-8501

TEL: (+81)-78-803-6483
FAX :(+81)-78-803-5791