168 citations · 613 across the 24 of their papers we have counts for
23 papers · 1 filter
Experimentally shock-induced melt veins in basalt: Improving the shock classification of eucrites
Haruka Ono, Kosuke Kurosawa, Takafumi Niihara +15
Basaltic rocks occur widely on the terrestrial planets and differentiated asteroids, including the asteroid 4 Vesta. We conducted a shock recovery experiment with decaying compress…
Effect of impact velocity and angle on deformational heating and post-impact temperature
Shigeru Wakita, Hidenori Genda, Kosuke Kurosawa +2
The record of impact induced shock-heating in meteorites is an important key for understanding the collisional history of the solar system. Material strength is important for impac…
Shock recovery with decaying compressive pulses: Shock effects in calcite (CaCO) around the Hugoniot elastic limit
Kosuke Kurosawa, Haruka Ono, Takafumi Niihara +12
Shock metamorphism of minerals in meteorites provides insights into the ancient Solar System. Calcite is an abundant aqueous alteration mineral in carbonaceous chondrites. Return s…
Ryugu's observed volatile loss did not arise from impact heating alone
Kosuke Kurosawa, Ryota Moriwaki, Hikaru Yabuta +3
Carbonaceous asteroids, including Ryugu and Bennu, which have been explored by the Hayabusa2 and OSIRIS-REx missions, were probably important carriers of volatiles to the inner Sol…
Experimental Simulations of Shock Textures in BCC Iron: Implications for Iron Meteorites
Eiji Ohtani, Toru Sakurabayashi, Kosuke Kurosawa
Neumann band in iron meteorites, which is deformation twins in kamacite (Fe-Ni alloy), has been known to be a characteristic texture indicating ancient collisions on parent bodies…
Modeling Early Clustering of Impact-induced Ejecta Particles Based on Laboratory and Numerical Experiments
Kanon Nakazawa, Satoshi Okuzumi, Kosuke Kurosawa +1
A projectile impact onto a granular target produces an ejecta curtain with the heterogeneous material distribution. Understanding how the heterogeneous pattern forms is potentially…
The role of post-shock heating by plastic deformation during impact devolatilization of calcite
Kosuke Kurosawa, Hidenori Genda, Shintaro Azuma +1
An accurate understanding of the relationship between the impact conditions and the degree of shock-induced thermal metamorphism in meteorites allows the impact environment in the…
Impact Ejecta near the Impact Point Observed using Ultra-high-speed Imaging and SPH Simulations, and a Comparison of the Two Methods
Takaya Okamoto, Kosuke Kurosawa, Hidenori Genda +1
High-speed impact ejecta at velocities comparable to the impact velocity are expected to contribute to material transport between planetary bodies and deposition of ejecta far from…
Generating metal-polluting debris in white dwarf planetary systems from small-impact crater ejecta
Dimitri Veras, Kosuke Kurosawa
Metal pollution in white dwarf photospheres originates from the accretion of some combination of planets, moons, asteroids, comets, boulders, pebbles and dust. When large bodies re…
Transport of impact ejecta from Mars to its moons as a means to reveal Martian history
Ryuki Hyodo, Kosuke Kurosawa, Hidenori Genda +2
Throughout the history of the solar system, Mars has experienced continuous asteroidal impacts. These impacts have produced impact-generated Mars ejecta, and a fraction of this deb…
Crater-ray formation through mutual collisions of hypervelocity-impact induced ejecta particles
Toshihiko Kadono, Ayako I. Suzuki, Rintaro Matsumura +4
We investigate the patterns observed in ejecta curtain induced by hypervelocity impact (2-6 km/s) with a variety of the size and shape of target particles. We characterize the patt…
Enhancement of impact heating in pressure-strengthened rocks in oblique impacts
Shigeru Wakita, Hidenori Genda, Kosuke Kurosawa +1
Shock-induced metamorphism in meteorites informs us about the collisional environment and history of our solar system. Recently the importance of material strength in impact heatin…
Assessment of the probability of microbial contamination for sample return from Martian moons II: The fate of microbes on Martian moons
Kosuke Kurosawa, Hidenori Genda, Ryuki Hyodo +5
This paper presents a case study of microbe transportation in the Mars-satellites system. We examined the spatial distribution of potential impact-transported microbes on the Marti…
Assessment of the probability of microbial contamination for sample return from Martian moons I: Departure of microbes from Martian surface
Kazuhisa Fujita, Kosuke Kurosawa, Hidenori Genda +5
Potential microbial contamination of Martian moons, Phobos and Deimos, which can be brought about by transportation of Mars ejecta produced by meteoroid impacts on the Martian surf…
Shock vaporization/devolatilization of evaporitic minerals, halite and gypsum, in an open system investigated by a two-stage light gas gun
Kosuke Kurosawa, Ryota Moriwaki, Goro Komatsu +4
Dry lakebeds might constitute large volatile reservoirs on Mars. Hypervelocity impacts onto ancient dry lakebeds would have affected the volatile distribution on Mars. We developed…
Impact cratering mechanics: A forward approach to predicting ejecta velocity distribution and transient crater radii
Kosuke Kurosawa, Satoshi Takada
Impact craters are among the most prominent topographic features on planetary bodies. Crater scaling laws allow us to extract information about the impact histories on the host bod…
Effects of friction and plastic deformation in shock-comminuted damaged rocks on impact heating
Kosuke Kurosawa, Hidenori Genda
Hypervelocity impacts cause significant heating of planetary bodies. Such events are recorded by a reset of 40Ar-36Ar ages and/or impact melts. Here, we investigate the influence o…
Increase in cratering efficiency with target curvature in strength-controlled craters
Ayako I. Suzuki, Chisato Okamoto, Kosuke Kurosawa +3
Impact-cratering processes on small bodies are thought to be mainly controlled by the local material strength because of their low surface gravity, and craters that are as large as…
Hydrocode modeling of the spallation process during hypervelocity impacts: Implications for the ejection of Martian meteorites
Kosuke Kurosawa, Takaya Okamoto, Hidenori Genda
Hypervelocity ejection of material by impact spallation is considered a plausible mechanism for material exchange between two planetary bodies. We have modeled the spallation proce…
A Lower Limit of Atmospheric Pressure on Early Mars Inferred from Nitrogen and Argon Isotopic Compositions
Hiroyuki Kurokawa, Kosuke Kurosawa, Tomohiro Usui
We examine the history of the loss and replenishment of the Martian atmosphere using elemental and isotopic compositions of nitrogen and noble gases. The evolution of the atmospher…
Recovery of entire shocked samples in a range of pressure from ~100 GPa to Hugoniot Elastic Limit
Keita Nagaki, Toshihiko Kadono, Tatsuhiro Sakaiya +5
We carried out laser shock experiments and wholly recovered shocked olivine and quartz samples. We investigated the petrographic features based on optical micrographs of sliced sam…
Impact-driven planetary desiccation: The origin of the dry Venus
Kosuke Kurosawa
The fate of surface water on Venus is one of the most important outstanding problems in comparative planetology. Here a new concept is proposed to explain water removal on a steam-…
Planetary and meteoritic Mg/Si and d30Si variations inherited from solar nebula chemistry
Nicolas Dauphas, Franck Poitrasson, Christoph Burkhardt +2
The bulk chemical compositions of planets are uncertain, even for major elements such as Mg and Si. This is due to the fact that the samples available for study all originate from…