435 citations · 1.2k across the 15 of their papers we have counts for
15 papers
Collisional Growth and Fragmentation of Dust Aggregates. II. Mass Distribution of Icy Fragments
Yukihiko Hasegawa, Takeru K. Suzuki, Hidekazu Tanaka +2
By performing -body simulations, we investigated fundamental processes of collisions between dust aggregates composed of submicron-sized icy dust monomers. We examined the mass…
Electrostatic Dust Ejection From Asteroid (3200) Phaethon With the Aid of Mobile Alkali Ions at Perihelion
Hiroshi Kimura, Katsuhito Ohtsuka, Shota Kikuchi +12
The asteroid (3200) Phaethon is known to be the parent body of the Geminids, although meteor showers are commonly associated with the activity of periodic comets. What is most pecu…
Do twin spectral peaks of olivine particles in the thermal infrared diagnose their sizes and porosities?
Hiroshi Kimura, Johannes Markkanen, Ludmilla Kolokolova +4
A well-established constraint on the size of non-porous olivine grains or the porosity of aggregates consisting of small olivine grains from prominent narrow peaks in thermal infra…
Collisional Growth and Fragmentation of Dust Aggregates with Low Mass Ratios. I: Critical Collision Velocity for Water Ice
Yukihiko Hasegawa, Takeru K. Suzuki, Hidekazu Tanaka +2
We investigated fundamental processes of collisional sticking and fragmentation of dust aggregates by carrying out N-body simulations of submicron-sized icy dust monomers. We exami…
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…
Is water ice an efficient facilitator for dust coagulation?
Hiroshi Kimura, Koji Wada, Hiroshi Kobayashi +8
Beyond the snow line of protoplanetary discs and inside the dense core of molecular clouds, the temperature of gas is low enough for water vapour to condense into amorphous ices on…