Search Results - "TERUI, Fuyuto"
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Uracil in the carbonaceous asteroid (162173) Ryugu
Published in Nature communications (21-03-2023)“…The pristine sample from the near-Earth carbonaceous asteroid (162173) Ryugu collected by the Hayabusa2 spacecraft enabled us to analyze the pristine…”
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Insights into the formation and evolution of extraterrestrial amino acids from the asteroid Ryugu
Published in Nature communications (17-03-2023)“…All life on Earth contains amino acids and carbonaceous chondrite meteorites have been suggested as their source at the origin of life on Earth. While many…”
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Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materials
Published in Nature communications (16-02-2023)“…Chondrule-like objects and Ca-Al-rich inclusions (CAIs) are discovered in the retuned samples from asteroid Ryugu. Here we report results of oxygen isotope,…”
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Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System Material
Published in The Astrophysical journal (01-04-2024)“…Abstract The analysis of samples returned from the C-type asteroid Ryugu has drastically advanced our knowledge of the evolution of early solar system…”
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Ballistic deployment of the Hayabusa2 artificial landmarks in the microgravity environment of Ryugu
Published in Icarus (New York, N.Y. 1962) (01-04-2021)“…Hayabusa2 deployed two artificial landmarks called “target markers (TMs)” on the asteroid Ryugu for autonomous landing control. To achieve precise deployment…”
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Breunnerite grain and magnesium isotope chemistry reveal cation partitioning during aqueous alteration of asteroid Ryugu
Published in Nature communications (05-09-2024)“…Returned samples from the carbonaceous asteroid (162173) Ryugu provide pristine information on the original aqueous alteration history of the Solar System…”
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The spatial distribution of impact craters on Ryugu
Published in Icarus (New York, N.Y. 1962) (01-03-2020)“…Asteroid 162173 Ryugu has numerous craters. The initial measurement of impact craters on Ryugu, by Sugita et al. (2019), is based on Hayabusa2 ONC images…”
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Hayabusa2's kinetic impact experiment: Operational planning and results
Published in Acta astronautica (01-10-2020)“…Hayabusa2 is a Japanese interplanetary probe launched on December 3, 2014, which arrived at asteroid Ryugu on June 27, 2018. During its stay around Ryugu, it…”
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PAHs, Hydrocarbons, and Dimethylsulfides in Asteroid Ryugu Samples A0106 and C0107 and the Orgueil (CI1) Meteorite
Published in Earth, planets, and space (27-02-2023)“…Evaluating the molecular distribution of organic compounds in pristine extraterrestrial materials is cornerstone to understanding the abiotic synthesis of…”
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Visualization of nanoscale magnetic domain states in the asteroid Ryugu
Published in Scientific reports (29-08-2023)“…In the samples collected from the asteroid Ryugu, magnetite displays natural remanent magnetization due to nebular magnetic field, whereas contemporaneously…”
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Variations of the surface characteristics of Ryugu returned samples
Published in Earth, planets, and space (01-12-2023)“…Hayabusa2 spacecraft successfully collected rock samples from the surface of C-type near-Earth asteroid 162173 Ryugu through two touchdowns and brought them…”
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Image-based autonomous navigation of Hayabusa2 using artificial landmarks: The design and brief in-flight results of the first landing on asteroid Ryugu
Published in Astrodynamics (01-06-2020)“…Hayabusa2 is an asteroid sample return mission carried out by the Japan Aerospace Exploration Agency. The spacecraft was launched in 2014 and arrived at the…”
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Trace-element analysis of mineral grains in Ryugu rock fragment sections by synchrotron-based confocal X-ray fluorescence
Published in Earth, planets, and space (04-11-2022)“…A fundamental parameter-based quantification scheme for confocal XRF was applied to sub-micron synchrotron radiation X-ray fluorescence (SR-XRF) data obtained…”
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Hayabusa2 pinpoint touchdown near the artificial crater on Ryugu: Trajectory design and guidance performance
Published in Advances in space research (15-10-2021)“…One of the major challenges in the Hayabusa2 sample-return mission was the second touchdown on the asteroid Ryugu, which was designed to collect subsurface…”
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Guidance, navigation, and control of Hayabusa2 touchdown operations
Published in Astrodynamics (01-12-2020)“…Hayabusa2 is a Japanese sample return mission from the asteroid Ryugu. The Hayabusa2 spacecraft was launched on 3 December 2014 and arrived at Ryugu on 27 June…”
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Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission
Published in Earth, planets, and space (01-12-2022)“…Millimetre-sized primordial rock fragments originating from asteroid Ryugu were investigated using high energy X-ray fluorescence spectroscopy, providing 2D…”
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The deep-space multi-object orbit determination system and its application to Hayabusa2’s asteroid proximity operations
Published in Astrodynamics (01-12-2020)“…The deep-space multi-object orbit determination system (DMOODS) and its application in the asteroid proximity operation of the Hayabusa2 mission are described…”
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Rock Magnetic Characterization of Returned Samples From Asteroid (162173) Ryugu: Implications for Paleomagnetic Interpretation and Paleointensity Estimation
Published in Journal of geophysical research. Planets (01-11-2022)“…In this study, systematic rock magnetic measurements and saturation isothermal remanent magnetization (SIRM) paleointensity calibration experiments were…”
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Incorporation of 16O-rich anhydrous silicates in the protolith of highly hydrated asteroid Ryugu
Published in Nature astronomy (01-09-2022)“…The abundant phyllosilicate and carbonate minerals characterizing most of the returned particles from asteroid Ryugu suggest a history of extensive aqueous…”
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Motion reconstruction of the small carry-on impactor aboard Hayabusa2
Published in Astrodynamics (01-12-2020)“…Subsurface exploration is one of the most ambitious scientific objectives of the Hayabusa2 mission. A small device called small carry-on impactor (SCI) was…”
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