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Do less-red KBOs share origins with the C-type asteroids?
2020Spectral surveys of the outer Solar System are starting to reveal the signatures of the early dispersal of the protoplanetesimal disk in the compositional-dynamical structure of the current planetesimal populations. The distribution of the known surface types of Kuiper Belt Objects (KBOs) are now being used to infer the compositional structure of the ...
Fraser, W. C. +16 more
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Predicting the origins of C-type family halo asteroids using ANNs
Asteroid families are groups of asteroids that have formed from the fragments of a larger ‘parent’ body that has been disrupted. When viewed in a space with the axis of proper orbital elements: semi-major axis (a), eccentricity (e), and inclination (i), families appear as relatively compact clusters within a background of unrelated asteroids.Andrew Marshall-Lee +3 more
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Icarus, 2015
Abstract We performed pulse-laser irradiation experiments of a primitive meteorite to simulate space weathering by micrometeorite bombardments on C-type asteroids. Pellets of powdered Murchison CM2 chondrite were set in vacuum and exposed to pulse laser with a diameter of 0.5 mm and delivered energies of 5, 10, and 15 mJ.
Moe Matsuoka +6 more
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Abstract We performed pulse-laser irradiation experiments of a primitive meteorite to simulate space weathering by micrometeorite bombardments on C-type asteroids. Pellets of powdered Murchison CM2 chondrite were set in vacuum and exposed to pulse laser with a diameter of 0.5 mm and delivered energies of 5, 10, and 15 mJ.
Moe Matsuoka +6 more
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Dynamic evolution of C-type asteroids inferred from carbonaceous CM chondrites
The Mighei-like (CM) group of carbonaceous chondrites are water and carbon-rich meteorites which have been identified as the most chemically primitive chondrites available to study. Their high indigenous water and carbon content has led authors to hypothesise that these meteorites may be at least partly responsible for organic and water delivery to ...openaire +2 more sources
Insight into multi-step geological evolution of C-type asteroids from Ryugu particles
Nature Astronomy, 2023Akira Yamaguchi +33 more
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Highly porous nature of C-type asteroid 162173 Ryugu revealed by thermal imaging from Hayabusa2
Thermal imaging, or thermography, has revealed the surface physical state of the C-type near-Earth asteroid 162173 Ryugu (Okada et al., 2020). The asteroid is the target body of JAXA Hayabsua2 asteroid sample return mission, and it has been characterized through remote sensing and surface experiments, and will be deeply and accurately investigated by ...Tatsuaki Okada +9 more
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Trip To An Asteroid: Hayabusa 2 Is Now Traveling Toward C-type Asteroid Ryugu
Science Trends, 2017openaire +1 more source
Giant Craters on Asteroid Mathilde Revealing a Cohesive Porous Interior of C-type Parent Bodies
The dark carbonaceous asteroids, comprising over 75% of the main belt population (~50% by mass), are thought to contain the most primitive materials from the early solar system. However, the lack of direct interior measurements has greatly limited our understanding of the formation and evolution of this category.Yifei Jiao +8 more
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NASA’s Lucy [1] successfully flew by the C-type asteroid (52246) Donaldjohanson [2] on April 20, 2025 [3]. The asteroid exhibited unique topographic and geological features [4-6]. While the imaged area was limited to the illuminated hemisphere at the time of the flyby, L’LORRI [7] and TTCAM [8] images reveal the asteroid’s elongated and contact binary ...
Masatoshi Hirabayashi +12 more
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Masatoshi Hirabayashi +12 more
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Mineralogy of Returned Sample from C-Type Near-Earth Asteroid (162173) Ryugu
2023openaire +1 more source