30 citations · 101 across the 10 of their papers we have counts for
13 papers
Spectral evolution of dark asteroid surfaces induced by space weathering over a decade
Sunao Hasegawa, Francesca E. DeMeo, Michael Marsset +20
The surface of airless bodies like asteroids in the Solar System are known to be affected by space weathering. Experiments simulating space weathering are essential for studying th…
Disruption of Saturn's ring particles by thermal stress
Naoyuki Hirata, Ryuji Morishima, Keiji Ohtsuki +1
Spacecraft and ground-based observations show that the main rings of Saturn lack particles larger than 10 m. Tidal or collisional destruction of satellites/comets have been propose…
Crater shape as a possible record of the impact environment of metallic bodies: Effects of temperature, impact velocity and impactor density
Ryo Ogawa, Akiko M. Nakamura, Ayako I. Suzuki +1
Metallic bodies that were the cores of differentiated bodies are sources of iron meteorites and are considered to have formed early in the terrestrial planet region before migratin…
Packing fraction of clusters formed in free-falling granular streams based on flash X-ray radiography
Yuuya Nagaashi, Akiko M. Nakamura, Sunao Hasegawa +1
We study the packing fraction of clusters in free-falling streams of spherical and irregularly shaped particles using flash X-ray radiography. The estimated packing fraction of clu…
Primordial porous structure of chondrite parent bodies due to self-gravity
Tomomi Omura, Akiko M. Nakamura
The porosity of an asteroid is important when studying the evolution of our solar system through small bodies and for planning mitigation strategies to avoid disasters due to aster…
Cohesion of regolith: Measurements of meteorite powders
Yuuya Nagaashi, Takanobu Aoki, Akiko M. Nakamura
The cohesion of particles has a significant effect on the properties of small bodies. In this study, we measured in open air, the cohesive forces of tens of micron-sized irregularl…