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Construction of an unifying model of formation and evolution of primordial material in the solar system

Research Project

Project/Area Number 20H00205
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 17:Earth and planetary science and related fields
Research InstitutionRitsumeikan University

Principal Investigator

土山 明  立命館大学, 総合科学技術研究機構, 教授 (90180017)

Co-Investigator(Kenkyū-buntansha) 三宅 亮  京都大学, 理学研究科, 准教授 (10324609)
松本 恵  東北大学, 理学研究科, 助教 (50725455)
奥住 聡  東京工業大学, 理学院, 教授 (60704533)
Project Period (FY) 2020-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2024)
Budget Amount *help
¥44,330,000 (Direct Cost: ¥34,100,000、Indirect Cost: ¥10,230,000)
Fiscal Year 2024: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2023: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2022: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2021: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2020: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywordsリュウグウサンプル / 炭素質コンドライト / 氷 / 炭素質コンドライ / はやぶさ2 / オシリスレックス / 非晶質珪酸塩 / 水質変成 / ナノX線CT / グランドタック / 太陽系固体物質の2分性 / 彗星塵
Outline of Research at the Start

近年のグランドタックモデル(木星・土星の大移動と小惑星の散乱)および太陽系固体物質の同位体2分性を考慮して、太陽系始原物質の分析(氷の痕跡や流体の探索)や再現実験、理論的考察により、以下の太陽系始原物質形成・進化の統一モデルを構築する。(1)始原的隕石や彗星塵を構成する高温物質は、共通した局所的な加熱イベントにより生成され、氷や有機物とともに母天体として集積した。(2)上記イベントは、それぞれの隕石グループに対応して太陽系の外側の様々な場所で起こり、隕石母天体は木星・土星の大移動に伴う散乱により内側の小惑星帯へと移動した。

Outline of Annual Research Achievements

本研究の目的は「太陽系始原物質は共通した局所加熱イベントにより生成、氷や有機物とともに母天体として集積、隕石母天体は散乱により内側の小惑星帯へと移動した」という作業仮説を設定し、高温物質の再現実験、再現物の水質変成実験、太陽系始原物質の分析、理論的考察により、太陽系始原物質形成・進化の統一モデルを構築することである。
当該年度は、JAXAのはやぶさ2探査機が小惑星リュウグウから地球に持ち帰ったサンプルの分析を前年度に引き続き重点的に行うとともに、NASAのオシリスレックス探査機が小惑星ベンヌから2023年9月に持ち帰ったサンプルの分析を開始した。リュウグウサンプルについては、X線CTを中心としてTEMなどを用いた系統的な分析を行った。これにより、リュウグウ母天体を作った固体微粒子は主として非晶質珪酸塩からなり、この高反応性物質の水流体との反応により、極めて高い過飽和度から低過飽和度へと推移する水質変成プロセスを明らかにした。また、水質変成の再現実験を、凝縮実験で作成した物質を用いて行い、マトリクスやコンドリュールトの集合体がどのような水質変成を受けるかを調べた。
X線CTの吸収像および位相シフト像の定量的な解析により、リュウグウサンプルのマトリクスのFe/Mg比、密度、ナノ空隙率を求める手法を開発した。炭素質コンドライトについても同様の手法を適用し、リュウグウサンプルと比較したところ、CIコンドライトに対応するとされているリュウグウサンプルは、CIコンドライトと異なる特徴を持つことがわかった。また、予察的ではあるが、ベンヌサンプルにはリュウグウサンプルよりもより空隙率の高いものが存在することがわかった。
一方で、さまざまな揮発性成分を含む氷ダストの原始太陽系円盤内での合体と輸送のシミュレーションをおこない、元素輸送と惑星成長を考慮した円盤における組成進化を明らかにしつつある。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

当該年度は、はやぶさ2のリュウグウサンプルの分析を中心に、多くの論文を発表することができた。とくに、サンプルが水質変成を受ける前の物質が非晶質珪酸塩であったという観点から、リュウグウ母天体における水質変成プロセスを解明し、太陽系始原物質形成・進化についてのモデルをより具体的に提案することができた。また、リュウグウサンプルとCIコンドライトとの相違点をもとに、リュウグウサンプルの特徴を明らかにすることができただけでなく、予察的ではあるがオシリスレックスのベンヌサンプルのリュウグウサンプルとの違いについても明らかにすることができた。また、X線CTを用いた従来と異なる手法により、多数のリュウグウサンプル粒子のバルク密度測定をおこない、密度の確定値を得た。
一方で、リュウグウサンプル、ベンヌサンプルや炭素質コンドライトについて、X線CT法により太陽系形成時の流体水の化石ともいうべき流体包有物の候補をいくつか見出した。今後これらの分析により、太陽系形成時におけるサンプル物質の生成領域に関するより詳細な情報が得られることが期待される状況にある。
実験による研究(高温物質の再現実験、再現物の水質変成実験)については、予定よりやや遅れているが、再現実験生成物を用いた水質変成実験により、マトリクスやコンドリュールとの集合体がどのような水質変成を受けるかが明らかにされつつある。
また、太陽系始原物質形成・進化についての理論的考察も、揮発性成分を含む氷について進みつつあり、珪酸塩への拡張を行いたい。

Strategy for Future Research Activity

高温物質の再現実験を行い、コンドリュールとマトリクス同時生成の条件を求める。また、再現物の水質変成実験を今後さらに系統的に行い、提唱した水質変成作用モデルと水質変成実験との比較により、詳細な水質変成条件を明らかにする。また、水質変成作用で生成された磁鉄鉱の結晶形態の多様性と酸素同位体分別に着目した分析を行い、水質変成プロセスの理解を進め、太陽系始原物質形成・進化についてのモデルをより精密なものとする。
リュウグウサンプル、ベンヌサンプルや炭素質コンドライトから見出している流体包有物の候補について、集束イオンビーム(FIB)を用いたマイクロサンプリングを行い、流体包有物を逃すことなく、顕微ラマン分光分析や超低温時間飛行型2次イオン質量分析(cryo TOF-SIMS)をおこない、流体の確認だけでなく、その元素組成や可能であれば酸素同位体組成を求める。これにより、太陽系形成時のサンプル物質の生成領域に関するより詳細な情報を得る。
ベンヌサンプルや関連する炭素質コンドライト隕石について、新しく開発したナノX線CTによるマトリクス解析法によりFe/Mg比、密度、ナノ空隙率を求め、リュウグウサンプルも含めた系統的な比較をおこなう。これにより、太陽系始原物質として最も重要なこれらの物質の位置付けを明らかにする。
太陽系始原物質形成・進化についての理論的考察について珪酸塩への拡張を行い、高温物質の再現実験、再現物の水質変成実験、太陽系始原物質の分析とともに、太陽系始原物質形成・進化の統一モデルの構築を目指す。

Report

(5 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (150 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (20 results) Journal Article (43 results) (of which Int'l Joint Research: 33 results,  Peer Reviewed: 43 results,  Open Access: 32 results) Presentation (85 results) (of which Int'l Joint Research: 33 results,  Invited: 6 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] NASAジョンソン 宇宙センター(米国)

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      2023 Annual Research Report
  • [Int'l Joint Research] パリサクレ大学(フランス)

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      2023 Annual Research Report
  • [Int'l Joint Research] オープン大学(イタリア)

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      2023 Annual Research Report
  • [Int'l Joint Research] 広州地球化学研究所(中国)

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      2023 Annual Research Report
  • [Int'l Joint Research] NASAジョンソン 宇宙センター/ハワイ大学(米国)

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      2022 Annual Research Report
  • [Int'l Joint Research] パリサクレ大学(フランス)

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      2022 Annual Research Report
  • [Int'l Joint Research] 広州地球化学研究所(中国)

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      2022 Annual Research Report
  • [Int'l Joint Research] オープン大学(英国)

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      2022 Annual Research Report
  • [Int'l Joint Research] ゲーテ大学(ドイツ)

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      2022 Annual Research Report
  • [Int'l Joint Research] NASAジョンソン 宇宙センター(米国)

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      2021 Annual Research Report
  • [Int'l Joint Research] パリサクレ大学(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 広州地球化学研究所(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 済州国立大学校(韓国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 自然史博物館(英国)

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      2021 Annual Research Report
  • [Int'l Joint Research] NASAジョンソン 宇宙センター(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] パリサクレ大学(フランス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 広州地球化学研究所(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 済州国立大学校(韓国)

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      2020 Annual Research Report
  • [Int'l Joint Research] トリノ大学(イタリア)

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      2020 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Influx of nitrogen-rich material from the outer Solar System indicated by iron nitride in Ryugu samples2024

    • Author(s)
      Matsumoto, T., Noguchi, T., Miyake, A. and 74 more (Yabuta, H.は56番目)
    • Journal Title

      Nature Astronomy

      Volume: 8 Issue: 2 Pages: 207-215

    • DOI

      10.1038/s41550-023-02137-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Four‐dimensional‐STEM analysis of the phyllosilicate‐rich matrix of Ryugu samples2024

    • Author(s)
      Mouloud B., Jacob D., de la Pena F., Marinova M., Le Guillou C., ...Tachibana S., et al
    • Journal Title

      Meteoritics and Planetary Science

      Volume: ー Issue: 8 Pages: 2002-2022

    • DOI

      10.1111/maps.14124

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Microstructural and chemical features of impact melts on Ryugu particle surfaces: Records of interplanetary dust hit on asteroid Ryugu2024

    • Author(s)
      Matsumoto M. et al. (11/39)
    • Journal Title

      Science Advances

      Volume: 10 Issue: 3 Pages: 1-18

    • DOI

      10.1126/sciadv.adi7203

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-dimensional textures of Ryugu samples and their implications for the evolution of aqueous alteration in the Ryugu parent body2024

    • Author(s)
      Tsuchiyama Akira、Matsumoto Megumi、Matsuno Junya、Yasutake Masahiro、Nakamura Tomoki、Noguchi Takaaki、Miyake Akira、Uesugi Kentaro、Takeuchi Akihisa、Okumura Shota、Fujioka Yuri、Sun Mingqi、Takigawa Aki、Matsumoto Toru、Enju Satomi、Mitsukawa Itaru、Enokido Yuma、Kawamoto Tatsuhiko、ほか
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: - Pages: 146-172

    • DOI

      10.1016/j.gca.2024.03.032

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three‐dimensional multiscale assembly of phyllosilicates, organics, and carbonates in small Ryugu fragments2023

    • Author(s)
      Dionnet Z., Rubino S., Aleon-Toppani A., Brunetto R., Tsuchiyama A., ...Tachibana S., et al
    • Journal Title

      Meteoritics and Planetary Science

      Volume: ー Issue: 8 Pages: 171-171

    • DOI

      10.1111/maps.14068

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Phyllosilicates with embedded Fe‐based nanophases in Ryugu and Orgueil2023

    • Author(s)
      Leroux H. et al. (56/85)
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 14101 Issue: 8 Pages: 1947-1965

    • DOI

      10.1111/maps.14101

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Formulating Compressive Strength of Dust Aggregates from Low to High Volume Filling Factors with Numerical Simulations2023

    • Author(s)
      Tatsuuma Misako、Kataoka Akimasa、Okuzumi Satoshi、Tanaka Hidekazu
    • Journal Title

      The Astrophysical Journal

      Volume: 953 Issue: 1 Pages: 6-6

    • DOI

      10.3847/1538-4357/acdf43

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Size Dependence of the Bouncing Barrier in Protoplanetary Dust Growth2023

    • Author(s)
      Arakawa Sota、Okuzumi Satoshi、Tatsuuma Misako、Tanaka Hidekazu、Kokubo Eiichiro、Nishiura Daisuke、Furuichi Mikito、Nakamoto Taishi
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 951 Issue: 1 Pages: L16-L16

    • DOI

      10.3847/2041-8213/acdb5f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structured Distributions of Gas and Solids in Protoplanetary Disks2023

    • Author(s)
      Bae, J., Isella, A., Zhu, Z., Martin, R., Okuzumi, S., Suriano, S.
    • Journal Title

      Protostars and Planets VII

      Volume: 534 Pages: 423-423

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Roles of Dust Growth in the Temperature Evolution and Snow Line Migration in Magnetically Accreting Protoplanetary Disks2023

    • Author(s)
      Kondo Katsushi、Okuzumi Satoshi、Mori Shoji
    • Journal Title

      The Astrophysical Journal

      Volume: 949 Issue: 2 Pages: 119-119

    • DOI

      10.3847/1538-4357/acc840

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The impact of dust evolution on the dead zone outer edge in magnetized protoplanetary disks2023

    • Author(s)
      Delage, T. N., Garate, M., Okuzumi, S., Yang, C.-C., Pinilla, P., Flock, M., Stammler, S. M., & Birnstiel, T.
    • Journal Title

      Astronomy and Astrophysics

      Volume: 674 Pages: A190-A190

    • DOI

      10.1051/0004-6361/202244731

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples2023

    • Author(s)
      Nakamura T.、Matsumoto M.、Amano K.、Enokido Y.、Zolensky M. E.、Mikouchi T.、Genda H.、Tanaka S.、Zolotov M. Y.、Kurosawa K. .. Yabuta H. ... et al.
    • Journal Title

      Science

      Volume: 379 Issue: 6634 Pages: 8671-8671

    • DOI

      10.1126/science.abn8671

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ubiquitous and progressively increasing ferric iron content on the lunar surfaces revealed by the Chang'e-5 sample2023

    • Author(s)
      Xian H., Zhu J., Yang Y., Li S., Lin X., Xi J., Xing J., Wu X., Yang H., Zhou Q., Tsuchiyama A., He H., Xu Y.G.
    • Journal Title

      Nature Astronomy

      Volume: 7 Issue: 3 Pages: 280-286

    • DOI

      10.1038/s41550-022-01855-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nonequilibrium spherulitic magnetite in the Ryugu samples2023

    • Author(s)
      E. Dobrica et al.
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 346 Pages: 65-75

    • DOI

      10.1016/j.gca.2023.02.003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-dimensional imaging of high-velocity-impact induced crack growth in carbonaceous meteorites2023

    • Author(s)
      Michikami T., Tsuchiyama A., Hagermann A., Takeda A., Shishido K., Otsuka Y., Sasaki O., Nakamura M., Okumura S., Kano H., Hasegawa S.
    • Journal Title

      Icarus

      Volume: 392 Pages: 115371-115371

    • DOI

      10.1016/j.icarus.2022.115371

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mineralogical alteration of a type A CAI from Allende CV3 chondrite: Formation of secondary dmisteinbergite and its phase transition to anorthite2023

    • Author(s)
      Enokido, Y., Nakamura, T., Matsumoto M., Miyake, A., Shibuya, T., Park, C., Zolensky M. E.
    • Journal Title

      Meteoritics & Planetar Science

      Volume: 58 Issue: 3 Pages: 405-420

    • DOI

      10.1111/maps.13961

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Small grains from Ryugu: handling and analysis pipeline for infrared synchrotron microspectroscopy2023

    • Author(s)
      Rubino Stefano、Dionnet Zlia、et al.
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 1-11

    • DOI

      10.1186/s40623-022-01762-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Using Mineral Science to Elucidate Mysteries of the Early Solar System2022

    • Author(s)
      土`山 明, 松野 淳
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 131 Issue: 2 Pages: 193-211

    • DOI

      10.5026/jgeography.131.193

    • ISSN
      0022-135X, 1884-0884
    • Year and Date
      2022-04-25
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional microstructure and mineralogy of a cosmic symplectite in the Acfer 094 carbonaceous chondrite: Implication for its origin2022

    • Author(s)
      Matsumoto Megumi、Tsuchiyama Akira、Miyake Akira、Ito Motoo、Matsuno Junya、Uesugi Kentaro、Takeuchi Akihisa、Kodama Yu、Yasutake Masahiro、Vaccaro Epifanio
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 323 Pages: 220-241

    • DOI

      10.1016/j.gca.2022.02.024

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Condensation of cometary silicate dust using an induction thermal plasma system2022

    • Author(s)
      Enju S., Kawano H., Tsuchiyama A., Kim T. H., Takigawa A., Matsuno J., Komaki H.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 661 Pages: A121-A121

    • DOI

      10.1051/0004-6361/202142620

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-axial shape distributions of pebbles, cobbles and boulders smaller than a few meters on asteroid Ryugu2022

    • Author(s)
      Michikami Tatsuhiro、Hagermann Axel、Morota Tomokatsu、et al.
    • Journal Title

      Icarus

      Volume: 381 Pages: 115007-115007

    • DOI

      10.1016/j.icarus.2022.115007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample2022

    • Author(s)
      Ito M.Tomioka N.Uesugi M.Yamaguchi A.Shirai N.Ohigashi T.Liu M.-C.Greenwood R. C.Kimura et al.
    • Journal Title

      Nature Astronomy

      Volume: 6 Issue: 10 Pages: 1163-1171

    • DOI

      10.1038/s41550-022-01745-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs2022

    • Author(s)
      Tsuchiyama Akira、Sakurama Takashi、Nakano Tsukasa、Uesugi Kentaro、Ohtake Makiko、Matsushima Takashi、Terakado Kazuo、Galimov Erik M.
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1 Pages: 172-172

    • DOI

      10.1186/s40623-022-01737-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu2022

    • Author(s)
      Noguchi Takaaki、Matsumoto Toru、Miyake Akira、Igami Yohei、Haruta Mitsutaka、Saito Hikaru、Hata Satoshi、Seto Yusuke、Miyahara Masaaki、Tomioka Naotaka ... Yabuta Hikaru ... et al.
    • Journal Title

      Nature Astronomy

      Volume: 7 Pages: 170-170

    • DOI

      10.1038/s41550-022-01841-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Oxygen isotope evidence from Ryugu samples for early water delivery to Earth by CI chondrites2022

    • Author(s)
      Greenwood Richard C.、Franchi Ian A.、Findlay Ross、Malley James A.、Ito Motoo、Yamaguchi Akira、Kimura Makoto、Tomioka Naotaka、Uesugi Masayuki、Imae Naoya、Shirai Naoki、Ohigashi Takuji, et al.
    • Journal Title

      Nature Astronomy

      Volume: 7 Issue: 1 Pages: 29-38

    • DOI

      10.1038/s41550-022-01824-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Trace-element analysis of mineral grains in Ryugu rock fragment sections by synchrotron-based confocal X-ray fluorescence2022

    • Author(s)
      Bazi Benjamin、Tack Pieter、Lindner Miles、Vekemans Bart、De Pauw Ella、Tkalcec Beverley、Brenker Frank E.、Garrevoet Jan、Falkenberg Gerald、Yabuta Hikaru et al.
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1 Pages: 161-161

    • DOI

      10.1186/s40623-022-01726-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission2022

    • Author(s)
      Tack Pieter、De Pauw Ella、Tkalcec Beverley、Lindner Miles、Bazi Benjamin、Vekemans Bart、Brenker Frank、Di Michiel Marco、Uesugi Masayuki、Yurimoto Hisayoshi、Nakamura Tomoki ... Yabuta Hikaru ... et al.
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1 Pages: 146-146

    • DOI

      10.1186/s40623-022-01705-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild22022

    • Author(s)
      Kawasaki Noriyuki、Nagashima Kazuhide、Sakamoto Naoya、Matsumoto Toru、Bajo Ken-ichi、Wada Sohei、Igami Yohei、Miyake Akira、Noguchi Takaaki、Yamamoto Daiki ... Yabuta Hikaru ... et al.
    • Journal Title

      Science Advances

      Volume: 8 Issue: 50 Pages: 1-10

    • DOI

      10.1126/sciadv.ade2067

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Antarctic micrometeorite composed of CP and CS IDP‐like material: A micro‐breccia originated from a partially ice‐melted comet‐like small body2022

    • Author(s)
      Noguchi Takaaki、Matsumoto Rikako、Yabuta Hikaru、Kobayashi Hanae、Miyake Akira、Naraoka Hiroshi、Okazaki Ryuji、Imae Naoya、Yamaguchi Akira、Kilcoyne A. L. David、Takeichi Yasuo、Takahashi Yoshio
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 57 Issue: 11 Pages: 2042-2062

    • DOI

      10.1111/maps.13919

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth2022

    • Author(s)
      Tachibana S.、Abe M. et al.
    • Journal Title

      Science

      Volume: 375 Issue: 6584 Pages: 1011-1016

    • DOI

      10.1126/science.abj8624

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Three-dimensional observation of GEMS grains: Their high-temperature condensation origin2022

    • Author(s)
      Matsuno Junya、Tsuchiyama Akira、Miyake Akira、Nakamura-Messenger Keiko、Messenger Scott
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 320 Pages: 207-222

    • DOI

      10.1016/j.gca.2021.12.031

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mineralogy of fine-grained matrix, fine-grained rim, chondrule rim, and altered mesostasis of a chondrule in Asuka 12169, one of the least altered CM chondrites2021

    • Author(s)
      Noguchi Takaaki、Yasutake Masahiro、Tsuchiyama Akira、Miyake Akira、Kimura Makoto、Yamaguchi Akira、Imae Naoya、Uesugi Kentaro、Takeuchi Akihisa
    • Journal Title

      Polar Science

      Volume: 29 Pages: 100727-100727

    • DOI

      10.1016/j.polar.2021.100727

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Condensation of cometary silicate dust using an induction thermal plasma system2021

    • Author(s)
      Kim T. H.、Takigawa A.、Tsuchiyama A.、Matsuno J.、Enju S.、Kawano H.、Komaki H.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 656 Pages: A42-A42

    • DOI

      10.1051/0004-6361/202141216

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural and chemical modifications of oxides and OH generation by space weathering: Electron microscopic/spectroscopic study of hydrogen-ion-irradiated Al2O32021

    • Author(s)
      Igami Yohei、Muto Shunsuke、Takigawa Aki、Ohtsuka Masahiro、Miyake Akira、Suzuki Kohtaku、Yasuda Keisuke、Tsuchiyama Akira
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 315 Pages: 61-72

    • DOI

      10.1016/j.gca.2021.09.031

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transmission Electron Microscopy Study of the Morphology of Ices Composed of H2O, CO2, and CO on Refractory Grains2021

    • Author(s)
      Kouchi, A., Tsuge, M., Hama, T., Oba, Y., Okuzumi, S., Sirono, S.-. iti ., Momose, M., Nakatani, N., Furuya, K., Shimonishi, T., Yamazaki, T., Hidaka, H., Kimura, Y., Murata, K.-. ichiro ., Fujita, K., Nakatsubo, S., Tachibana, S., & Watanabe, N.
    • Journal Title

      The Astrophysical Journal

      Volume: 918 Issue: 2 Pages: 45-45

    • DOI

      10.3847/1538-4357/ac0ae6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evolution of the Water Snow Line in Magnetically Accreting Protoplanetary Disks2021

    • Author(s)
      Mori, S., Okuzumi, S., Kunitomo, M., & Bai, X.-N.
    • Journal Title

      The Astrophysical Journal

      Volume: 916 Issue: 2 Pages: 72-72

    • DOI

      10.3847/1538-4357/ac06a9

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation of chiral CO polyhedral crystals on icy interstellar grains2021

    • Author(s)
      Kouchi, A., Tsuge, M., Hama, T., Niinomi, H., Nakatani, N., Shimonishi, T., Oba, Y., Kimura, Y., Sirono, S.-. iti ., Okuzumi, S., Momose, M., Furuya, K., & Watanabe, N.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 505 Issue: 1 Pages: 1530-1542

    • DOI

      10.1093/mnras/stab1173

    • NAID

      120007132042

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In-situ water-immersion experiments on amorphous silicates in the MgO?SiO2 system: implications for the onset of aqueous alteration in primitive meteorites2021

    • Author(s)
      Igami Yohei、Tsuchiyama Akira、Yamazaki Tomoya、Matsumoto Megumi、Kimura Yuki
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 293 Pages: 86-102

    • DOI

      10.1016/j.gca.2020.10.023

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The formation of H2O and Si-OH by H2+ irradiation in major minerals of carbonaceous chondrites2021

    • Author(s)
      Nakauchi Yusuke、Abe Masanao、Ohtake Makiko、Matsumoto Toru、Tsuchiyama Akira、Kitazato Kohei、Yasuda Keisuke、Suzuki Kohtaku、Nakata Yoshinori
    • Journal Title

      Icarus

      Volume: 355 Pages: 114140-114140

    • DOI

      10.1016/j.icarus.2020.114140

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Condensation of Glass with Multimetal Nanoparticles: Implications for the Formation Process of GEMS Grains2021

    • Author(s)
      Junya Matsuno, Akira Tsuchiyama, Takayuki Watanabe, Manabu Tanaka, Aki Takigawa, Satomi Enju, Chiyoe Koike ,Hiroki Chihara, Akira Miyake
    • Journal Title

      The Astrophysical Journal

      Volume: 911:47 Issue: 1 Pages: 1-16

    • DOI

      10.3847/1538-4357/abe5a0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Discovery of primitive CO2-bearing fluid in an aqueously altered carbonaceous chondrite2021

    • Author(s)
      Akira Tsuchiyama, Akira Miyake, Satoshi Okuzumi, Akira Kitayama, Jun Kawano, Kentaro Uesugi , Akihisa Takeuchi, Tsukasa Nakano, Michael Zolensky
    • Journal Title

      SCIENCE ADVANCES

      Volume: 7 Issue: 17

    • DOI

      10.1126/sciadv.abg9707

    • NAID

      120007032349

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association of silica phases as geothermobarometer for eucrites: Implication for two‐stage thermal metamorphism in the eucritic crust2021

    • Author(s)
      Ono Haruka、Takenouchi Atsushi、Mikouchi Takashi、Yamaguchi Akira、Yasutake Masahiro、Miyake Akira、Tsuchiyama Akira、Righter Kevin
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 56 Issue: 6 Pages: 1086-1108

    • DOI

      10.1111/maps.13664

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Combining IR and X‐ray microtomography data sets: Application to Itokawa particles and to Paris meteorite2020

    • Author(s)
      Dionnet Zelia、Brunetto Rosario、Al?on‐Toppani Alice、Rubino Stefano、Baklouti Donia、Borondics Ferenc、Buellet Anne‐C?cile、Djouadi Zahia、King Andrew、Nakamura Tomoki、Rotundi Alessandra、Sandt Christophe、Troadec David、Tsuchiyama Akira
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 55 Issue: 7 Pages: 1645-1664

    • DOI

      10.1111/maps.13538

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Development of 3D Crystal Shape Description Including Orientation Using XnCT and TEM and Its Application to Ryugu Sample2024

    • Author(s)
      H. Ono, A. Tsuchiyama, M. Matsumoto, A. Miyake, J. Matsuno, T. Nakamura, M. Yasutake, K. Uesugi, A. Takeuchi, S. Tachibana
    • Organizer
      55th Lunar and Planetary Science Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of Early Solar System Aqueous Fluids in Extraterrestrial Samples2024

    • Author(s)
      M. Zolensky, R. Bodnar, A. Dolocan, J. Han, R. Hanna, I. Gearba, Q. H. S. Chan, T. Ireland, C. Goodrich, M. Matsumoto, A. Tsuchiyama, L. Le
    • Organizer
      55th Lunar and Planetary Science Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructural and chemical analyses of impact melt splashes on Ryugu particle surfaces2023

    • Author(s)
      淳也、土`山 明、中村 智樹、榎戸 祐馬、安武 正展、上杉 健太朗、竹内 晃久、延寿 里美、奥村 翔太、三津川 到、スン ミンチー、三宅 亮、圦本 尚義、野口 高明、岡崎 隆司、薮田 ひかる、坂松本 恵、松野本 佳奈子、橘 省吾、渡辺 誠一郎、津田 雄一
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Phase transition of glassy forsterite in contact with liquid water2023

    • Author(s)
      大峯 歩、平澤 英寿、橘 省吾、山本 大貴、土`山 明、渡邉 友亮、深澤 倫子
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ペブル同士の衝突付着による接触面半径の解析モデルと付着N体計算との比較2023

    • Author(s)
      辰馬未沙子, 奥住聡, 片岡章雅, 田中秀和
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 原始惑星系円盤内側領域の温度・密度構造の共進化2023

    • Author(s)
      加藤遼, 奥住聡
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 原始惑星系円盤内側領域への揮発性元素輸送と木星形成2023

    • Author(s)
      中澤風音, 奥住聡
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁気的に降着する原始惑星系円盤でのスノーライン移動と岩石微惑星形成2023

    • Author(s)
      近藤克, 奥住聡, 森昇志
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 放射光X線CTを用いたDaG999ユレイライト中炭素粒子の内部構造観察2023

    • Author(s)
      安武 正展、松本 恵、松野 淳也、土`山 明、上杉 健太朗、竹内 晃久
    • Organizer
      日本鉱物科学会2023年年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] はやぶさ2リターンサンプル表面の微隕石衝突メルトとマイクロクレータの ナノCT・TEM分析2023

    • Author(s)
      松本 恵、松野 淳也、土`山 明、中村 智樹、榎戸 祐馬、菊入 瑞葉、安武 正展、上杉 建太朗、竹内 晃久、延寿 里美、奥村 翔太、三津川 到、スン ミンチー、三宅 亮、はやぶさ2 初期分析コアチーム
    • Organizer
      日本鉱物科学会2023年年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 隕石と小惑星リターンサンプルの分析から読み解く太陽系小天体の起源と進化2023

    • Author(s)
      松本恵
    • Organizer
      神山天文台天文講座
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 放射光X線CTを活用したはやぶさ2リターンサンプルの複合分析2023

    • Author(s)
      松本恵
    • Organizer
      第3回SPring-8放射光利用技術研究会/第91回SPring-8先端利用技術ワークショップ「放射光複合分析」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Coupled evolution of the dust and shadow around the snow line in protoplanetary disks2023

    • Author(s)
      Satoshi Okuzumi, Ayumi Ono, Takahiro Ueda, Neal Turner
    • Organizer
      Protostars and Planets VII
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 巨大惑星がつくる密度波による原始惑星系円盤の衝撃波加熱2023

    • Author(s)
      岡村龍樹, 小野智弘, 奥住聡, 武藤恭之
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 円盤形成段階でのガス・ダスト進化による同位体空間不均質の形成2023

    • Author(s)
      本間和明, 奥住聡, 荒川創太, 深井稜汰
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁気的に降着する原始惑星系円盤でのスノーライン移動と岩石微惑星形成2023

    • Author(s)
      近藤克, 奥住聡, 森昇志
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 原始惑星系円盤内側領域における揮発性元素濃縮とガス惑星形成2023

    • Author(s)
      中澤風音, 奥住聡
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 太陽系円盤形成段階のガス・ダスト進化による同位体不均質の形成・維持2023

    • Author(s)
      本間和明, 奥住聡, 荒川創太, 深井稜汰
    • Organizer
      日本惑星科学会2023年秋季講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超高解像トモグラフィ・3D レンダリング技術を用いたアエンデ隕石中の難揮発性凝縮物の形状観察2023

    • Author(s)
      増田雄樹, 竹田裕介, 深井稜汰, 伊庭靖弘, 笹木慎太郎, 池上森, 臼井寛裕, 奥住聡, 荒川創太
    • Organizer
      日本惑星科学会2023年秋季講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 原始惑星系円盤の表層ガス降着が駆動する微惑星形成2023

    • Author(s)
      奥住聡
    • Organizer
      日本惑星科学会2023年秋季講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 巨大惑星付近の原始惑星系円盤の熱構造2023

    • Author(s)
      奥住聡
    • Organizer
      新学術領域「星・惑星形成」2023年度大研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Planetesimal formation driven by the surface gas accretion in protoplanetary disks2023

    • Author(s)
      Satoshi Okuzumi
    • Organizer
      Magnetohydrodynamical flows in young circumstellar disks
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermal evolution of protoplanetary disks2023

    • Author(s)
      Satoshi Okuzumi
    • Organizer
      Exoplanets & Planet Formation Workshop 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Physical Properties of Constituent Material of the Regolith of Ryugu2022

    • Author(s)
      田中 智、長野 方星、八木 貴志、猪 裕太、辻 健、佐藤 雅彦、黒澤 耕介、長足 友哉、中嶋 大輔、石崎 拓也、河原 岳尊、坂谷 尚哉、遠藤 理恵、山下 雄一郎、西 剛史、太田 弘通、菅沼 友仁、…土`山 明、他
    • Organizer
      JpGU Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Hayabusa2 returned samples: Unique and pristine record of Solar System materials from asteroid Ryugu2022

    • Author(s)
      伊藤 元雄、富岡 尚敬、上椙 真之、山口 亮、今栄 直也、白井 直樹、大東 琢治、木村 眞、Liu Ming-Chang、Greenwood Richard. C.、上杉 健太朗、中藤 亜衣子、与賀田 佳澄、湯沢 勇人、兒玉 優、土`山 明、他
    • Organizer
      JpGU Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] C型小惑星リュグウから回収された試料の鉱物学的特徴と宇宙風化2022

    • Author(s)
      野口 高明、松本 徹、三宅 亮、伊神 洋平、治田 充貴、斉藤 光、波多 聰、瀬戸 雄介、宮原 正明、富岡 尚敬、土`山 明、安武 正展、松野 淳也、奥村 翔太、三津川 到、上杉 健太朗、上椙 真之、竹内 晃久、延寿 里美、瀧川 晶、道上 達広、中村 智樹、松本 恵、他
    • Organizer
      JpGU Meeting 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] はやぶさ2リターンサンプルC0002粒子に含まれる様々な岩相の電子顕微鏡観察と放射光ナノCT分析2022

    • Author(s)
      松本 恵、松野 淳也、土`山 明、中村 智樹、三河内 岳、安武 正展、上杉 健太朗、竹内 晃久、延寿 里美、奥村 翔太、三津川 到、榎戸 祐馬、三宅 亮、圦本 尚義
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] リュウグウから見つかった白金族元素硫化物のナゲット2022

    • Author(s)
      松野 淳也、三宅 亮、松本 恵、中村 智樹、高橋 嘉夫、山田 真也、土`山 明、延寿 里美、圦本 尚義、野口 高明、岡崎 隆司、薮田 ひかる、奈良岡 浩、坂本 佳奈子、橘 省吾
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] SIXMによるユレイライト中炭素質物質の分析2022

    • Author(s)
      安武 正展、松野 淳也、松本 恵、土`山 明、上杉 健太朗、竹内 晃久
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] はやぶさ2リターンサンプルに含まれるマグネタイト粒子の3次元形状:多様性とその意味2022

    • Author(s)
      土`山明、松本 恵、松野 淳也、三宅 亮、中村 智樹、野口 高明、安武 正展、上杉 健太朗、竹内 晃久、延寿 里美、瀧川 晶、奥村 翔太、三津川 到、榎戸 悠馬
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 炭素質隕石に対する衝突実験-X 線 CT 撮像による隕石内部クラッ クの3次元分布2022

    • Author(s)
      道上達広、土`山明、ハガーマン・アクセル、武田旭生、宍戸克樹、長谷川直
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] THE O-ISOTOPE COMPOSITION OF RYUGU PARTICLES: THE MOST PRISTINE CIs?2022

    • Author(s)
      R. C. Greenwood, I. A. Franchi, R. Findlay, J. A. Malley, M. Ito, A. Yamaguchi, M. Kimura, N. Tomioka, M. Uesugi, N. Imae, N. Shirai, T. Ohigashi6, M-C. Liu, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ACQUEOUS ALTERATION PROBED BY MUTLI-ASSEMBLY AND 3D HETEROGENEITY IN SMALL RYUGU FRAGMENTS2022

    • Author(s)
      Dionnet Z., Aleon-Toppani A., Brunetto R., Rubino S., Nakamura T., Baklouti D., Djouadi Z., Lantz C., Mivumbi O., Borondics F., Heripre E., Troadec D., Tsuchiyama A., Matsuno J., Matsumoto M.,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ANALYSUS OF "STONE" SAMPLES FROM C-TYPE ASTEROID RYUGU2022

    • Author(s)
      T. Nakamura, M. Matsumoto, K. Amano, Y. Enokido, M. E. Zolensky, T. Mikouchi, H. Genda, S. Tanaka, M. Y. Zolotov, K. Kurosawa, S. Wakita, R. Hyodo, H. Nagano, D. Nakashima, Y. Takahashi, Y. Fujioka, M. Kikuiri, E. Kagawa, M. Matsuoka, A. J. Brearley, A. Tsuchiyama,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D MORPHOLOGIES OF MAGNETITE, SULFIDES, CARBONATES AND PHOSPHATES IN RYUGU SAMPLES AND THEIR CRYSTALLIZATION SEQUENCE DURING AQUEOUS ALTERATION2022

    • Author(s)
      A. Tsuchiyama, M. Matsumoto, J. Matsuno, T. Nakamura, T. Noguchi4 M. Yasutake, K. Uesugi, A. Takeuchi, A. Miyake, S.,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] UPDATE ON MEASUREMENT OF THE COMPOSITION OF RYUGU FLUID INCLUSIONS2022

    • Author(s)
      M. Zolensky, A. Dolocan, R. Bodnar, I. Gearba, J. Martinez, J. Han, T. Nakamura, A. Tsuchiyama7, J. Matsuno, M. Sun, M. Matsumoto, Y. Fujioka, Y. Enokido, K. Uesugi, A. Takeuchi, M. Yasutake, A. Miyake,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DEHYDRATION DECOMPOSITION OF PHYLLOSILICATES IN THE C-TYPE ASTEROID RYUGU MATERIAL BY SPACE WEATHERING2022

    • Author(s)
      T. Noguchi, T. Matsumoto2, A. Miyake, Y. Igami, M. Haruta, H. Saito4, S. Hata, Y. Seto, M. Miyahara, N. Tomioka, H. A. Ishii, J. P. Bradley, K. Ohtaki, E. Dobrica_, H. Leroux, C. Le Guillou, D. Jacob, F. de la Pen_a, S. Laforet, … A. Tsuchiyama, … M. Matsumoto,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ONE YEAR ON! A SUMMARY OF THE ANALYTICAL WORK ON RYUGU PARTICLES CONDUCTED BY PHASE2 KOCHI CURATION2022

    • Author(s)
      M. Ito, N. Tomioka, M. Uesugi, A. Yamaguchi, N. Imae, N. Shirai, T. Ohigashi, M. Kimura, M-C, Liu, R.C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama,
    • Organizer
      85th Annual Meeting of The Meteoritical Society 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modeling of aqueous alteration in the parent body of the asteroid Ryugu2022

    • Author(s)
      A. Tsuchiyama
    • Organizer
      Hayabusa 2022 Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mineralogical and petrological study of Aguas Zarcas CM2 chondrite2022

    • Author(s)
      Kenei Ogiya, Toru Matsumoto, Akira Miyake, Takashi Mikouchi
    • Organizer
      The 13th Symposium on Polar Science
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nitrization of magnetite on the surface of C-type asteroid Ryugu2022

    • Author(s)
      T. Matsumoto, T. Noguchi, A. Miyake, Y. Igami, M. Haruta, Y. Seto, M. Miyahara, N. Tomioka, D. Harries, the Min-Pet Fine sub-team and the Hayabusa 2 initial analysis core
    • Organizer
      Hayabusa2 Symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Defect microstructure of pyrrhotite in regolith material returned from C-type asteroid 162173 Ryugu, evidence for shock metamorphism2022

    • Author(s)
      Falko Langenhorst, Dennis Harries, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, the Min-Pet “Sand” Team, and the Hayabusa2 Initial Analysis Core
    • Organizer
      Hayabusa2 Symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小惑星リュウグウ試料における無水鉱物の宇宙風化と粒子表面の凝縮層の観察2022

    • Author(s)
      松本 徹、野口 高明、三宅 亮、伊神 洋平、治田 充貴、斉藤 光、波多 聰、瀬戸 雄介、宮原 正明、富岡 尚敬、圦本 尚義、中村 智樹、薮田 ひかる、奈良岡 浩、岡崎 隆司
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] CP IDPとCS IDP的物質の微細な角礫岩である南極微隕石2022

    • Author(s)
      野口 高明、松本 里佳子、薮田 ひかる、小林 華栄、三宅 亮、奈良岡 浩、岡崎 隆司、今栄 直也、山口 亮、キルコイン デービッド、山下 翔平、高橋 嘉夫
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Aguas Zarcas隕石の鉱物学的研究2022

    • Author(s)
      荻谷 賢英、松本 徹、三宅 亮
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Moama隕石中トリディマイト多形のFIB-TEM観察2022

    • Author(s)
      竹之内 惇志、伊神 洋平、三宅 亮、下林 典正、三河内 岳、大野 遼
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 始原的炭素質コンドライトマトリクスの高温その場TEM観察2022

    • Author(s)
      松本恵、三宅亮、松野淳也
    • Organizer
      日本鉱物科学会2022年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] An infrared look at Ryugu returned samples in the meteorite/asteroid perspective2022

    • Author(s)
      Brunetto, R., Aleon-Toppani, A., Nakamura, T., Lantz, C., Dionnet, Z. et al.
    • Organizer
      Hayabusa2 Symposium 2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] CAI粒子の合体成?: 付着理論からの検討2022

    • Author(s)
      奥住聡, 増田雄樹, 深井稜汰, 荒川創太
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] リュウグウ試料の岩石磁気学的・古地磁気学的研究2022

    • Author(s)
      佐藤雅彦, 木村勇気, 田中智, 畠山唯達, 杉田精司, 中村智樹, 橘省吾, 奥住聡, ほか
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 原始太陽系円盤におけるアンモニウム塩の輸送と木星の窒素濃縮2022

    • Author(s)
      中澤風音, 奥住聡
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 円盤温度構造の時間進化に対するダスト臨界破壊速度の影響:木星の影形成シナリオの検証に向けて2022

    • Author(s)
      小野歩, 奥住聡
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ダストと温度が共進化する磁気降着円盤のスノーライン進化2022

    • Author(s)
      近藤克, 奥住聡, 森昇志
    • Organizer
      日本惑星科学会2022年秋季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 炭素質隕石・非炭素質隕石の同位体組成バリエーション2022

    • Author(s)
      深井稜汰, 荒川創太, 本間和明, 横山哲也, 奥住聡, 嶌生有理
    • Organizer
      日本地球惑星科学連合2022年大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 惑星ギャップを持つ原始太陽系星雲におけるダストのサイズ・同位体組成分布の進化2022

    • Author(s)
      本間和明, 奥住聡, 荒川創太, 深井稜汰
    • Organizer
      日本地球惑星科学連合2022年大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] DIRECT MEASUREMENT OF THE COMPOSITION OF AQUEOUS FLUIDS FROM THE PARENT BODY OF ASTEROID 162173 RYUGU2022

    • Author(s)
      M. Zolensky, A. Dolocan, R. Bodnar, I. Gearba, J. Martinez, J. Han, T. Nakamura, A. Tsuchiyama, J. Matsuno, M. Sun, M. Matsumoto, Y. Fujioka, Y. Enokido, K. Uesugi, A. Takeuchi, M. Yasutake, A. Miyake, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MINERALOGY AND SPACE WEATHERING OF FINE FRACTION RECOVERED FROM ASTEROID (162173) RYUGU2022

    • Author(s)
      T. Noguchi, T. Matsumoto, A. Miyake, Y. Igami, M. Haruta, H. Saito, S. Hata, Y. Seto, M. Miyahara, N. Tomioka, H. A. Ishii, J. P. Bradley, K. Ohtaki, E. Dobrică, H. Leroux, C. Le Guillou, D. Jacob, ..., A. Tsuchiyama, ..., M. Matsumoto, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EARLY HISTORY OF RYUGU’S PARENT ASTEROID: EVIDENCE FROM RETURN SAMPLE2022

    • Author(s)
      T. Nakamura, M. Matsumoto, K. Amano, Y. Enokido, M. E. Zolensky, T. Mikouchi, H. Genda, S. Tanaka, M. Y. Zolotov, K. Kurosawa, S. Wakita, R. Hyodo, H. Nagano, D. Nakashima, Y. Takahashi, Y. Fujioka, M. Kikuiri, E. Kagawa, M. Matsuoka, A. J. Brearley, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] THE OXYGEN ISOTOPIC COMPOSITION OF HAYABUSA2 PARTICLES: TESTING THE RELATIONSHIP WITH CI AND CY CHONDRITES2022

    • Author(s)
      R. C. Greenwood, R. Findlay, I. A. Franchi, J. A. Mal- ley, M. Ito, A. Yamaguchi, M. Kimura, N. Tomioka, M. Uesugi, N. Imae, N. Shirai, T. Ohigashi, M-C. Liu, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] OXYGEN ISOTOPES OF CARBONATE AND MAGNETITE RECORD FLUID EVOLUTION ON THE RYUGU ASTEROID2022

    • Author(s)
      K.A. McCain, N. Matsuda, M-C. Liu, K.D. McKeegan, A. Yamaguchi, M. Kimura, N. Tomioka, M. Ito, M. Uesugi, N. Imae, N. Shirai, T. Ohigashi, R. C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama,and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HAYABUSA2 RETURNED SAMPLES: UNIQUE AND PRISTINE RECORD OF SOLAR SYSTEM MATERIALS FROM ASTEROID RYUGU2022

    • Author(s)
      M. Ito, N. Tomioka, M. Uesugi, A. Yamaguchi, N. Imae, N. Shirai, T. Ohigashi, M. Kimura, M-C, Liu, R.C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MINERALOGICAL ANALYSIS OF VARIOUS LITHOLOGIES IN COARSE RYUGU SAMPLES USING TRANSMISSION ELECTRON MICROSCOPY2022

    • Author(s)
      M. Matsumoto, J. Matsuno, A. Tsuchiyama, T. Nakamura, Y. Enokido, A. Miyake, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Physical properties of the returned sample of Ryugu by Hayabusa2 mission2022

    • Author(s)
      S.Tanaka, H.Nagano, T.Yagi, Y.Ino, T.Tsuji, M.Sato, K.Kurosawa , Y.Nagaashi, D.Nakashima, T.Ishizaki, T.Kawahara, N.Sakatani, R.Endo, M.Susa, Y.Yamashita, T.Nishi, H.Ohta, ..., A.Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SMALL RYUGU FRAGMENTS ANALYZED BY IR MICRO-SPECTROSCOPY AND TOMOGRAPHY: A DESCRIPTION OF THE 3D HETEROGENEITY AT THE MICROMETRIC SCALE2022

    • Author(s)
      Z. Dionnet, A. Ale_on-Toppani, R. Brunetto, S. Rubino, T. Nakamura, D. Baklouti, Z. Djouadi, C. Lantz, O. Mivumbi, F. Borondics, E. He_ripre_, D. Troadec, A. Tsuchiyama-, J. Matsuno, M. Matsumoto, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TRANSMISSION ELECTRON MICROSCOPY OF HAYABUSA2 PARTICLES: HOW SHOCKED IS ASTEROID RYUGU?2022

    • Author(s)
      N. Tomioka, M. Ito, M. Uesugi, A. Yamaguchi, N. Imae, N. Shirai, T. Ohigashi, M. Kimura, M-C. Liu, R. C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama†, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PETROLOGY OF ASTEROID RYUGU PARTICLES ALLOCATED TO THE PHASE2 CURATION KOCHI TEAM2022

    • Author(s)
      A. Yamaguchi, M. Kimura, M. Ito, N. Tomioka, M. Uesugi, N. Imae, N. Shirai, T. Ohigashi, M-C. Liu, R. C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MINERALOGICAL, PETROLOGICAL AND PHYSICAL PROPERTIES OF RYUGU SAMPLES USING X-RAY NANOTOMOGRAPHY2022

    • Author(s)
      A. Tsuchiyama, M. Matsumoto, J. Matsuno, T. Nakamura, T. Noguchi, K. Uesugi, A. Takeuchi, M. Yasutake, A. Miyake, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IN-SITU OXYGEN ISOTOPE STUDY OF ANHYDROUS MINERALS IN A RYUGU PARTICLE: IMPLICATIONS FOR THE PRECURSORS TO CI-CHONDRITE PARENT BODIES2022

    • Author(s)
      M.-C. Liu, K. A. McCain, N. Matsuda, A. Yamaguchi, M. Kimura, N. Tomioka, M. Ito, M. Uesugi, N. Imae, N. Shirai, T. Ohigashi, R. C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama†, A. Tsuchiyama, and others
    • Organizer
      53nd Lunar and Planetary Science Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水質変成を受けた炭素質コンドライトから見出 された CO2 に富む流体包有物とその惑星科学的 意義:統一的な太陽系始原物質形成と進化のモデルを目指して2021

    • Author(s)
      土`山 明(立命館大)・松野 淳也
    • Organizer
      日本地球化学会第68回年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Assessing the irradiation effects by a synchrotron X-ray micro-computed tomography on the organic materials in carbonaceous chondrite: Examination at SPring-8 facility2021

    • Author(s)
      菅原 春菜、高野 淑識、吉村 寿紘、小川 奈々子、大河内 直彦、上椙 真之、土`山 明、はやぶさ2 プロジェクトチーム
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 3D crystal size distributions of pyroxene nanolites plotted against short-axis length reflect magma ascent dynamics2021

    • Author(s)
      奥村 翔太、無盡 真弓、土`山 明、三宅 亮
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] X-ray nanotomography of CM and CI chondrites and their heated samples: as a rehearsal of Hayabusa2 sample analysis2021

    • Author(s)
      M. Sun、A. Tsuchiyama、M. Matsumoto、Y. Fujioka、T. Nakamura、J. Matsuno、A. Miyake、S. Okumura、N. Tomioka、M. Ito、Y. Kodama、S. Rubino、N. Nakano、K. Uesugi、A. Takeuchi、M. Yasutake
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Combined XRD-XCT-FIB-TEM analysis of experimentally heated Murchison CM chondrite2021

    • Author(s)
      松本 恵、松野 淳也、土`山 明、藤岡 悠理、中村 智樹、三宅 亮、安武 正展、奥村 翔太、上杉 健太朗、竹内 晃久
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] リュウグウ試料リハーサル分析としてのCM, CI隕石とその加熱試料の高空間分解能三色CT2021

    • Author(s)
      松野 淳也、土`山 明、松本 恵、藤岡 悠理、中村 智樹、上杉 健太朗、竹内 晃久、安武 正展、中野 司、中野 直人、Stefano Rubino、奥村 翔太、三宅 亮
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Three‐dimensional analysis of Ryugu sample particles using X‐ray nanotomography2021

    • Author(s)
      A. Tsuchiyama
    • Organizer
      Hayabusa 2021 Symposium (8th ISAS Symposium of the Solar System Materials)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] OLIVINE PETROFABRIC ANALYSIS OF BRACHINITES: IMPLICATIONS FOR PETROGENETIC DIVERSITIES2021

    • Author(s)
      T. Mikouchi, A. Takenouchi, M. Yasutake, H. Hasegawa, A. Yamaguchi, A. Miyake, A. Tsuchiyama and A. J. Irving
    • Organizer
      52nd Lunar and Planetary Science Conference 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of abrasion rates of regolith particles on Itokawa and the Moon based on abration experiments2020

    • Author(s)
      土`山 明、山口 裕貴、中村 昭子
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 3D crystal size distributions of pyroxene nanolites based on nanoX-ray CT analyses2020

    • Author(s)
      奥村 翔太、無盡 真弓、土`山 明、三宅 亮
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Deep-seated hydrothermal circulation beneath the rdige axis: a case study of crustal diopsidite from Oman ophiolite2020

    • Author(s)
      秋澤 紀克、三宅 亮、土`山 明、横山 祐典、阿瀬 貴博、浅沼 尚
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Synchrotron radiation-based X-ray computed nanotomography of unheated and experimentally heated Murchison CM chondrite2020

    • Author(s)
      松本 恵、土`山 明、安武 正展、三宅 亮、上杉 健太朗、竹内 晃久、中野 司、中村 智樹
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 桜島大正軽石における石基輝石の晶相および平行連晶組織2020

    • Author(s)
      奥村翔太・土`山 明・三宅亮
    • Organizer
      日本鉱物科学会2020年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非加熱・実験加熱 Murchison 隕石の放射光 X 線 CT2020

    • Author(s)
      松本恵・土`山明・安武正展・三宅亮・上杉健太朗・竹内晃久・中野司・中村智樹
    • Organizer
      日本鉱物科学会2020年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] MgO-SiO2 系非晶質ケイ酸微粒子の水質変成過程その場観察2020

    • Author(s)
      伊神洋平・土`山明・山崎智也・木村勇気・松本恵
    • Organizer
      日本鉱物科学会2020年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Condensation Experiments of Mg-Si-Fe-Ni-Al-Ca-O-S Silicates in ITP System2020

    • Author(s)
      A._ Takigawa_Y. Imura, S. Enju,_A. Tsuchiyama
    • Organizer
      Goldschmidt2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] X-ray nanotomograpy analysis of CM chondrites2020

    • Author(s)
      M. Sun, A. Tsuchiyama, A. Miyake, S. Okumura, M. Matsumoto, T. Nakamura, Y. Fujioka, N. Tomioka, M. Ito, Y. Kodama, N. Imae, A. Yamaguchi, S. Rubino, N. Nakano, J. Matsuno, T. Noguchi, K. Uesugi, A. Takeuchi, M. Yasutake, T. Nakano
    • Organizer
      Annual Meeting of Chinses Geoscience Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Book] Sample Return Missions, The Last Frontier of Solar Exploration (Chapter 6)2021

    • Author(s)
      M. Yoshikawa, J. Kawaguchi, A. Fujiwara, A. Tsuchiyama
    • Total Pages
      382
    • Publisher
      Elsevier
    • ISBN
      9780128183304
    • Related Report
      2021 Annual Research Report
  • [Remarks] 総合科学技術研究機構・土`山明教授が、「公益社団法人日本地球惑星科学連合学術賞(三宅賞)」を受賞

    • URL

      https://www.ritsumei.ac.jp/news/detail/?id=2670

    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2024-12-25  

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