Reconciling remote-sensing estimates of Ryugu’s albedo with laboratory measurementsOPEN ACCESS
Christian Potiszil, Tsutomu Ota & Eizo Nakamura Nature Astronomy, Published: 26 September 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Japanese Hayabusa2 spacecraft returned samples from the asteroid Ryugu in December 2020, and several results on…
Phosphorus-rich grains in Ryugu samples with major biochemical potential
C. Pilorget, D. Baklouti, J.-P. Bibring, R. Brunetto, M. Ito, I. Franchi, N. Tomioka, M. Uesugi, A. Yamaguchi, R. Greenwood, T. Okada, T. Usui, T. Yada, K. Hatakeda, K. Yogata, D. Loizeau, T. Le Pivert-Jolivet,…
Variations of organic functional chemistry in carbonaceous matter from the asteroid 162173 RyuguOPEN ACCESS
Bradley De Gregorio, George D. Cody, Rhonda M. Stroud, A. L. David Kilcoyne, Scott Sandford, Corentin Le Guillou, Larry R. Nittler, Jens Barosch, Hikaru Yabuta, Zita Martins, Yoko Kebukawa, Taiga Okumura, Minako Hashiguchi, Shohei Yamashita,…
Comparison of optical spectra between asteroids Ryugu and Bennu: II. High-precision analysis for space weathering trendsOPEN ACCESS
K. Yumoto, E. Tatsumi, T. Kouyama, D.R. Golish, Y. Cho, T. Morota, S. Kameda, H. Sato, B. Rizk, D.N. DellaGiustina, Y. Yokota, H. Suzuki, J. de León, H. Campins, J. Licandro, M. Popescu, J.L. Rizos,…
Past orbital evolution and its effects on the surface of (162173) RyuguOPEN ACCESS
M C Guimarães; RAN Araujo, O C Winter Monthly Notices of the Royal Astronomical Society, stae1494Published: 17 June 2024 LINK (OPEN ACCESS) “The Japanese probe Hayabusa 2 recently visited the NEA (162173) Ryugu. This mission…
Pyrrhotites in asteroid 162173 Ryugu: Records of the initial changes on their surfaces with aqueous alterationOPEN ACCESS
Hiroharu Yui, Shu-hei Urashima, Morihiko Onose, Mayu Morita, Shintaro Komatani, Izumi Nakai, Yoshinari Abe, Yasuko Terada, Hisashi Homma, Kazuko Motomura, Kiyohiro Ichida, Tetsuya Yokoyama, Kazuhide Nagashima, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri…
Comparison of optical spectra between asteroids Ryugu and Bennu: I. Cross calibration between Hayabusa2/ONC-T and OSIRIS-REx/MapCam
K. Yumoto, E. Tatsumi, T. Kouyama, D.R. Golish, Y. Cho, T. Morota, S. Kameda, H. Sato, B. Rizk, D.N. DellaGiustina, Y. Yokota, H. Suzuki, J. de León, H. Campins, J. Licandro, M. Popescu, J.L. Rizos,…
A comprehensive study of apatite grains in Ryugu rock fragmentsOPEN ACCESS
B. J. Tkalcec, P. Tack, E. De Pauw, B. Bazi, B. Vekemans, M. Lindner, L. Vincze, M. Di Michiel, J. Garrevoet, G. Falkenberg, T. Nakamura, T. Morita, K. Amano, D. Nakashima, F. Langenhorst, K. Pollok,…
The Chemical Composition of Ryugu: Prospects as a Reference Material for Solar System CompositionOPEN ACCESS
Tetsuya Yokoyama, Nicolas Dauphas, Ryota Fukai, Tomohiro Usui, Shogo Tachibana, Maria Schönbächler, Henner Busemann, Masanao Abe, Toru Yada Instrumentation and Methods for Astrophysics PDF (OPEN ACCESS) “The Hayabusa 2 spacecraft sampled approximately 5.4 g of…
Nonmagnetic framboid and associated iron nanoparticles with a space-weathered feature from asteroid RyuguOPEN ACCESS
Yuki Kimura, Takeharu Kato, Satoshi Anada, Ryuji Yoshida, Kazuo Yamamoto, Toshiaki Tanigaki, Tetsuya Akashi, Hiroto Kasai, Kosuke Kurosawa, Tomoki Nakamura, Takaaki Noguchi, Masahiko Sato, Toru Matsumoto, Tomoyo Morita, Mizuha Kikuiri, Kana Amano, Eiichi Kagawa, Toru…
Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu’s parent bodyOPEN ACCESS
Zack Gainsforth, Gerardo Dominguez, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Eiichi Kagawa, Tomoki Nakamura, Shogo Tachibana, Tomoyo Morita, Mizuha Kikuiri, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro…
The influence of chondrules on sub-mm fragment shape distributions in Allende impact experiments
Tatsuhiro Michikami, Axel Hagermann, Akira Tsuchiyama, Yushi Otsuka, Michihiko Nakamura, Satoshi Okumura, Harumasa Kano, Junya Matsuno, Sunao Hasegawa IcarusIn Press, Journal Pre-proof, Available online 2 April 2024 LINK “Highlights • We investigated the shapes of…
Three-dimensional textures of Ryugu samples and their implications for the evolution of aqueous alteration in the Ryugu parent body
Akira Tsuchiyama, Megumi Matsumoto, Junya Matsuno, Masahiro Yasutake, Tomoki Nakamura, Takaaki Noguchi, Akira Miyake, Kentaro Uesugi, Akihisa Takeuchi, Shota Okumura, Yuri Fujioka, Mingqi Sun, Aki Takigawa, Toru Matsumoto, Satomi Enju, Itaru Mitsukawa, Yuma Enokido, Tatsuhiko…
Correlated IR-SEM-TEM studies of three different grains from Ryugu: From the initial material to post-accretional processesOPEN ACCESS
Alice Aléon-Toppani, Rosario Brunetto, Zélia Dionnet, Stefano Rubino, Donia Baklouti, François Brisset, Maxime Vallet, Eva Heripre, Tomoki Nakamura, Cateline Lantz, Zahia Djouadi, Ferenc Borondics, Christophe Sandt, David Troadec, Obadias Mivumbi, Megumi Matsumoto, Kana Amano, Tomoyo…
Hydrogen in magnetite from asteroid RyuguOPEN ACCESS
J. Aléon, S. Mostefaoui, H. Bureau, D. Vangu, H. Khodja, K. Nagashima, N. Kawasaki, Y. Abe, C. M. O’D. Alexander, S. Amari, Y. Amelin, K. Bajo, M. Bizzarro, A. Bouvier, R. W. Carlson, M. Chaussidon,…
Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro- to nano-scaleOPEN ACCESS
Rhonda M. Stroud, Jens Barosch, Lydie Bonal, Katherine Burgess, George D. Cody, Bradley T. De Gregorio, Luke Daly, Emmanuel Dartois, Elena Dobrică, Jean Duprat, Cecile Engrand, Dennis Harries, Minako Hashiguchi, Hope Ishii, Yoko Kebukawa, A….
Hayabusa 2 returned samples reveal a weak to null magnetic field during aqueous alteration of Ryugu’s parent bodyOPEN ACCESS
C. Maurel, J. Gattacceca, M. Uehara Earth and Planetary Science LettersVolume 627, 1 February 2024, 118559 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Highlights Ryugu samples of 1 and 22 mg do not exhibit any stable remanent…
In situ investigation of an organic micro-globule and its mineralogical context within a Ryugu “sand” grainOPEN ACCESS
Van T. H. Phan, Pierre Beck, Rolando Rebois, Eric Quirico, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata, Yusuke Seto, Masaaki Miyahara, Naotaka Tomioka, Hope A. Ishii, John P….
Four-dimensional-STEM analysis of the phyllosilicate-rich matrix of Ryugu samplesOPEN ACCESS
Bahae-eddine Mouloud, Damien Jacob, Francisco de la Peña, Maya Marinova, Corentin Le Guillou, Jean-Christophe Viennet, Sylvain Laforet, Hugues Leroux, Adrien Teurtrie, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata,…
Neodymium-142 deficits and samarium neutron stratigraphy of C-type asteroid (162173) Ryugu
Zachary A. Torrano, Michelle K. Jordan, Timothy D. Mock, Richard W. Carlson, Ikshu Gautam, Makiko K. Haba, Tetsuya Yokoyama, Yoshinari Abe, Jérôme Aléon, Conel Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier,…
Reassigning CI chondrite parent bodies based on reflectance spectroscopy of samples from carbonaceous asteroid Ryugu and meteoritesOPEN ACCESS
Kana Amano Moe Matsuoka Tomoki Nakamura Eiichi Kagawa Yuri Fujioka Sandra M. Potin Takahiro Hiroi Eri Tatsumi Ralph E. Milliken Eric Quirico Pierre Beck Rosario Brunetto Masayuki Uesugi Yoshio Takahashi Takahiro Kawai Shohei Yamashita Yuma…
Influx of nitrogen-rich material from the outer Solar System indicated by iron nitride in Ryugu samplesOPEN ACCESS
Toru Matsumoto, Takaaki Noguchi, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Yusuke Seto, Masaaki Miyahara, Naotaka Tomioka, Hikaru Saito, Satoshi Hata, Dennis Harries, Aki Takigawa, Yusuke Nakauchi, Shogo Tachibana, Tomoki Nakamura, Megumi Matsumoto, Hope A. Ishii,…
The Magnesium Isotope Composition of Samples Returned from Asteroid RyuguOPEN ACCESS
Martin Bizzarro, Martin Schiller, Tetsuya Yokoyama, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Audrey Bouvier et al The Astrophysical Journal Letters, Volume 958, Number 2Published: 2023 November 24…
Mineralogy and petrology of fine-grained samples recovered from the asteroid (162173) Ryugu
Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata, Yusuke Seto, Masaaki Miyahara, Naotaka Tomioka, Hope A. Ishii, John P. Bradley, Kenta K. Ohtaki, Elena Dobrică, Hugues Leroux, Corentin Le…
The iron oxidation state of Ryugu samples
Mathieu Roskosz, Pierre Beck, Jean-Christophe Viennet, Tomoki Nakamura, Barbara Lavina, Michael Y. Hu, Jiyong Zhao, Esen E. Alp, Yoshio Takahashi, Tomoyo Morita, Kana Amano, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako…
A curation for uncontaminated Hayabusa2-returned samples in the extraterrestrial curation center of JAXA: from the beginning to present dayOPEN ACCESS
Toru Yada, Masanao Abe, Masahiro Nishimura, Hirotaka Sawada, Ryuji Okazaki, Yoshinori Takano, Kanako Sakamoto, Tatsuaki Okada, Aiko Nakato, Miwa Yoshitake, Yuki Nakano, Kasumi Yogata, Akiko Miyazaki, Shizuho Furuya, Ayako S. Iwamae, Shunichi Nakatsubo, Kentaro Hatakeda,…
Importance of asteroid sample return
Nature Geoscience, Volume 16, page 833Editorial. Published: 06 October 2023 LINK “On 24 September, OSIRIS-REx landed in the Utah desert with a cache of approximately two hundred grams of rock from the asteroid 101955 Bennu….
Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 RyuguOPEN ACCESS
Toshihiro Yoshimura, Yoshinori Takano, Hiroshi Naraoka, Toshiki Koga, Daisuke Araoka, Nanako O. Ogawa, Philippe Schmitt-Kopplin, Norbert Hertkorn, Yasuhiro Oba, Jason P. Dworkin, José C. Aponte, Takaaki Yoshikawa, Satoru Tanaka, Naohiko Ohkouchi, Minako Hashiguchi, Hannah McLain,…
Infrared absorption spectra from organic matter in the asteroid Ryugu samples: Some unique properties compared to unheated carbonaceous chondrites
Yoko Kebukawa, Eric Quirico, Emmanuel Dartois, Hikaru Yabuta, Laure Bejach, Lydie Bonal, Alexandre Dazzi, Ariane Deniset-Besseau, Jean Duprat, Cecile Engrand, Jérémie Mathurin, Jens Barosch, George D. Cody, Bradley De Gregorio, Minako Hashiguchi, Kanami Kamide, David…
Evidence of global space weathering by solar wind on asteroid 162173 Ryugu
T. Hiroi, R.E. Milliken, K.M. Robertson, C.D. Schultz, K. Amano, T. Nakamura, H. Yurimoto, T. Noguchi, R. Okazaki, H. Naraoka, H. Yabuta, K. Sakamoto, T. Yada, M. Nishimura, A. Nakato, A. Miyazaki, K. Yogata, M….
Development of preparation methods of polished sections of returned samples from asteroid Ryugu by the Hayabusa2 spacecraft
Daisuke Nakashima, Yuri Fujioka, Kanchi Katayama, Tomoyo Morita, Mizuha Kikuiri, Kana Amano, Eiichi Kagawa, Tomoki Nakamura MAPSVersion of Record online: 03 July 2023 LINK “Preparation procedures of polished sections of the Ryugu samples returned by…
The Formation of a Rubble Pile Asteroid: Insights from the Asteroid RyuguOPEN ACCESS
Tsutomu Ota, Christian Potiszil, Katsura Kobayashi, Ryoji Tanaka, Hiroshi Kitagawa, Tak Kunihiro, Chie Sakaguchi, Masahiro Yamanaka and Eizo Nakamura Universe 2023, 9(6), 293, REVIEW LINK (OPEN ACCESS)PDF (DOWNLOAD) “The Hayabusa2 mission returned primitive samples from…
The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) RyuguOPEN ACCESS
Minako Hashiguchi, Dan Aoki, Kazuhiko Fukushima, Hiroshi Naraoka, Yoshinori Takano, Jason P. Dworkin, Karin E. Dworkin, José C. Aponte, Jamie E. Elsila, John M. Eiler, Yoshihiro Furukawa, Aogu Furusho, Daniel P. Glavin, Heather V. Graham,…
Spectral Type and Geometric Albedo of (98943) 2001 CC21, the Hayabusa2# Mission TargetOPEN ACCESS
Jooyeon Geem, Masateru Ishiguro, Mikael Granvik, Hiroyuki Naito, Hiroshi Akitaya, Tomohiko Sekiguchi, Sunao Hasegawa, Daisuke Kuroda, Tatsuharu Oono, Yoonsoo P. Bach, Sunho Jin, Ryo Imazawa, Koji S. Kawabata, Seiko Takagi, Makoto Yoshikawa, Anlaug A. Djupvik,…
MASCOT’s in situ analysis of asteroid Ryugu in the context of regolith samples and remote sensing data returned by Hayabusa2OPEN ACCESS
Katharina Otto, Tra-Mi Ho, Stephan Ulamec, Jean-Pierre Bibring, Jens Biele, Matthias Grott, Maximilian Hamm, David Hercik, Ralf Jaumann, Masahiko Sato, Stefan E. Schröder, Satoshi Tanaka, Ulrich Auster, Kohei Kitazato, Jörg Knollenberg, Aurelie Moussi, Tomoki Nakamura,…
Uracil in the carbonaceous asteroid (162173) RyuguOPEN ACCESS
Yasuhiro Oba, Toshiki Koga, Yoshinori Takano, Nanako O. Ogawa, Naohiko Ohkouchi, Kazunori Sasaki, Hajime Sato, Daniel P. Glavin, Jason P. Dworkin, Hiroshi Naraoka, Shogo Tachibana, Hisayoshi Yurimoto, Tomoki Nakamura, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta,…
Insight into multi-step geological evolution of C-type asteroids from Ryugu particles
Akira Yamaguchi, Naotaka Tomioka, Motoo Ito, Naoki Shirai, Makoto Kimura, Richard C. Greenwood, Ming-Chang Liu, Kaitlyn A. McCain, Nozomi Matsuda, Masayuki Uesugi, Naoya Imae, Takuji Ohigashi, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu…
Interaction between clay minerals and organics in asteroid RyuguOPEN ACCESS
J.-C. Viennet, M. Roskosz, T. Nakamura, P. Beck, B. Baptiste, B. Lavina, E.E. Alp, M.Y. Hu, J. Zhao, M. Gounelle, R. Brunetto, H. Yurimoto, T. Noguchi, R. Okazaki, H. Yabuta, H. Naraoka, K. Sakamoto, S….
Extraterrestrial Amino Acids and Amines Identified in Asteroid Ryugu Samples Returned by the Hayabusa2 Mission
Eric T. Parker, Hannah L. McLain, Daniel P. Glavin, Jason P. Dworkin, Jamie E. Elsila, José C. Aponte, Hiroshi Naraoka, Yoshinori Takano, Shogo Tachibana, Hikaru Yabuta, Hisayoshi Yurimoto, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko…
Nonequilibrium Spherulitic Magnetite In The Ryugu Samples
Elena Dobrică, Hope A. Ishii, John P. Bradley, Kenta Ohtaki, Adrian J. Brearley, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Yohei Igami, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata, Yusuke Seto, Masaaki Miyahara, Naotaka Tomioka, Hugues Leroux,…
Early fluid activity on Ryugu inferred by isotopic analyses of carbonates and magnetite
Kaitlyn A. McCain, Nozomi Matsuda, Ming-Chang Liu, Kevin D. McKeegan, Akira Yamaguchi, Makoto Kimura, Naotaka Tomioka, Motoo Ito, Naoya Imae, Masayuki Uesugi, Naoki Shirai, Takuji Ohigashi, Richard C. Greenwood, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata,…
Constraints on Solar System early evolution by MicrOmega analysis of Ryugu carbonates
D. Loizeau, C. Pilorget, L. Riu, R. Brunetto, J.-P. Bibring, A. Nakato, A. Aléon-Toppani, K. Hatakeda, K. Yogata, J. Carter, T. Le Pivert-Jolivet, T. Yada, T. Okada, T. Usui, Y. Langevin, C. Lantz, D. Baklouti,…
Methods and tools for handling, transportation, weighing, and pelletization applied to the initial analysis of volatile components in the Hayabusa2 samplesOPEN ACCESS
Ryuji Okazaki, Shinji Yamanouchi, Kazuhiko Shimada, Atsushi Baba, Fumio Kitajima & Toru Yada Earth, Planets and Space, Volume 74, Article number: 190Published: 27 December 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Hayabusa2 spacecraft succeeded in sampling and returning…
Contribution of Ryugu-like material to Earth’s volatile inventory by Cu and Zn isotopic analysis
Marine Paquet, Frederic Moynier, Tetsuya Yokoyama, Wei Dai, Yan Hu, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi,…
Constraining surface properties of asteroid (162173) Ryugu from numerical simulations of Hayabusa2 mission impact experimentOPEN ACCESS
Martin Jutzi, Sabina D. Raducan, Yun Zhang, Patrick Michel & Masahiko Arakawa Nature Communications, Volume 13, Article number: 7134 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Hayabusa2 mission impact experiment on asteroid Ryugu created an unexpectedly…
Derivation of 1.064 μm normal albedos on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAROPEN ACCESS
Ryuhei Yamada, Keiko Yamamoto, Shoko Oshigami, Hiroshi Araki, Hiroki Senshu, Hirotomo Noda, Noriyuki Namiki, Koji Matsumoto, Fumi Yoshida, Shinsuke Abe, Naru Hirata, Sho Sasaki & Takahide Mizuno Earth, Planets and Space volume 74, Article number:…
Rock magnetic characterization of returned samples from asteroid (162173) Ryugu: Implications for paleomagnetic interpretation and paleointensity estimation
Masahiko Sato, Yuki Kimura, Satoshi Tanaka, Tadahiro Hatakeyama, Seiji Sugita, Tomoki Nakamuna, Shogo Tachibana, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi…
First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from RyuguOPEN ACCESS
Ryuji Okazaki, Yayoi N. Miura, Yoshinori Takano, Hirotaka Sawada, Kanako Sakamoto, Toru Yada, Keita Yamada, Shinsuke Kawagucci, Yohei Matsui, […] Shogo Tachibana Science Advances20 Oct 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary Materials (PDF) “The…
Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolutionOPEN ACCESS
Ryuji Okazaki, Bernard Marty, Henner Busemann, Ko Hashizume, Jamie D. Gilmour, Alex Meshik, Toru Yada, Fumio Kitajima, Michael W. Broadley […] Yuichi Tsuda Science Advances20 Oct 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary Materials (PDF)…
The Solar System calcium isotopic composition inferred from Ryugu samplesOPEN ACCESS
F. Moynier, W. Dai, T. Yokoyama, Y. Hu, M. Paquet, Y. Abe, J. Aléon, C.M.O’D. Alexander, S. Amari, Y. Amelin, K.-I. Bajo, et al. Geochemical Perspectives Letters v24Published 19 October 2022 LINK (OPEN ACCESS)PDF (OPEN…
Particle size distributions inside and around the artificial crater produced by the Hayabusa2 impact experiment on RyuguOPEN ACCESS
K. Ogawa, N. Sakatani, T. Kadono, M. Arakawa, R. Honda, K. Wada, K. Shirai, Y. Shimaki, K. Ishibashi, Y. Yokota, T. Saiki, H. Imamura, Y. Tsuda, S. Nakazawa, Y. Takagi, M. Hayakawa, H. Yano, C….
Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space missionOPEN ACCESS
Pieter Tack, Ella De Pauw, Beverley Tkalcec, Miles Lindner, Benjamin Bazi, Bart Vekemans, Frank Brenker, Marco Di Michiel, Masayuki Uesugi, Hisayoshi Yurimoto, Tomoki Nakamura, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Yuma Enokido, Daisuke Nakashima, Takaaki…
Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples
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….
Characterization of the MASCOT landing area by Hayabusa2OPEN ACCESS
Stefan Schröder, Naoya Sakatani, Rie Honda, Eri Tatsumi, Yasuhiro Yokota, Deborah Domingue, Yuichiro Cho, Shingo Kameda, Kohei Kitazato, Toru Kouyama, Moe Matsuoka, Akira Miura, Tomokatsu Morota, Tatsuaki Okada, Hirotaka Sawada, Hiroki Senshu, Yuri Shimaki, Seiji…
A pristine record of outer Solar System materials from asteroid Ryugu’s returned sampleOPEN ACCESS
Motoo Ito, Naotaka Tomioka, Masayuki Uesugi, Akira Yamaguchi, Naoki Shirai, Takuji Ohigashi, Ming-Chang Liu, Richard C. Greenwood, Makoto Kimura, Naoya Imae, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Akira Tsuchiyama, Masahiro Yasutake,…
Incipient Space Weathering on 162173 Ryugu Recorded by Crystallographic Changes of Pyrrhotite
Harries D. * Langenhorst F. Matsumoto T. Noguchi T. Yurimoto H. Nakamura T. Yabuta H. Naraoka H. Okazaki R. Sakamoto K. Tachibana S. Watanabe S. Tsuda Y. MetSoc 2022 abstract [#6073] LINK “Pyrrhotite recovered from…
Dehydration Decomposition of Phyllosilicates in the C-Type Asteroid Ryugu Material by Space Weathering
Noguchi T. * Matsumoto T. Miyake A. Igami Y. Haruta M. Saito H. Hata S. Seto Y. Miyahara M. Tomioka N. Ishii H. A. Bradley J. P. Ohtaki K. Dobricǎ E. Leroux H. LeGuillou C….
Site selection for the Hayabusa2 artificial cratering and subsurface material sampling on Ryugu
Shota Kikuchi, Sei-ichiro Watanabe, Koji Wada, Takanao Saiki et al. Planetary and Space ScienceIn Press, Journal Pre-proof, Available online 16 June 2022 LINK “Highlights • Hayabusa2 aimed to collect subsurface samples from Ryugu excavated by…
Environmental assessment in the prelaunch phase of Hayabusa2 for safety declaration of returned samples from the asteroid (162173) Ryugu: background monitoring and risk management during development of the sampler systemOPEN ACCESS
Kanako Sakamoto, Yoshinori Takano, Hirotaka Sawada, Ryuji Okazaki, Takaaki Noguchi, Masayuki Uesugi, Hajime Yano, Toru Yada, Masanao Abe, Shogo Tachibana & The Hayabusa2 Project Team Earth, Planets and Space, Volume 74, Article number: 90 LINK…
Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteoritesOPEN ACCESS
Tetsuya Yokoyama, Kazuhide Nagashima, Izumi Nakai, Edward D. Young, Yoshinari Abe, Jérôme Aléon, Conel M. O’D. Alexander, Sachiko Amari, Yuri Amelin, Ken-ichi Bajo, Martin Bizzarro, Audrey Bouvier, Richard W. Carlson, Marc Chaussidon, Byeon-Gak Choi, Nicolas…
On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspectiveOPEN ACCESS
Eizo NAKAMURA , Katsura KOBAYASHI, Ryoji TANAKA, Tak KUNIHIRO, Hiroshi KITAGAWA, Christian POTISZIL, Tsutomu OTA, Chie SAKAGUCHI, Masahiro YAMANAKA, Dilan M. RATNAYAKE, Havishk TRIPATHI, Rahul KUMAR, Maya-Liliana AVRAMESCU, Hidehisa TSUCHIDA, Yusuke YACHI, Hitoshi MIURA, Masanao…
Three-axial shape distributions of pebbles, cobbles and boulders smaller than a few meters on asteroid RyuguOPEN ACCESS
Tatsuhiro Michikami, Axel Hagermann, Tomokatsu Morota, Yasuhiro Yokota, Seitaro Urakawa, Hiroyuki Okamura, Naoya Tanabe, Koki Yumoto, Tatsuki Ebihara, Yuichiro Cho, Carolyn M. Ernst, Masahiko Hayakawa, Masatoshi Hirabayashi, Naru Hirata, Chikatoshi Honda, Rie Honda, Shingo Kameda,…
Non-protein amino acids identified in carbon-rich Hayabusa particles
Eric T. Parker, Queenie H. S. Chan, Daniel P. Glavin, Jason P. Dworkin MAPSVersion of Record online: 08 March 2022 LINK “Amino acid abundances in acid-hydrolyzed hot water extracts of gold foils containing five Category…
The Asteroid 162173 Ryugu: a Cometary OriginOPEN ACCESS
Hitoshi Miura, Eizo Nakamura and Tak Kunihiro The Astrophysical Journal Letters, Volume 925, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Japanese Hayabusa2 mission has revealed in detail the physical characteristics of the C-type asteroid…
Mid-infrared emissivity of partially dehydrated asteroid (162173) Ryugu shows strong signs of aqueous alterationOPEN ACCESS
M. Hamm, M. Grott, H. Senshu, J. Knollenberg, J. de Wiljes, V. E. Hamilton, F. Scholten, K. D. Matz, H. Bates, A. Maturilli, Y. Shimaki, N. Sakatani, W. Neumann, T. Okada, F. Preusker, S. Elgner,…
Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid RyuguOPEN ACCESS
Toru Yada, Masanao Abe, Tatsuaki Okada, Aiko Nakato, Kasumi Yogata, Akiko Miyazaki, Kentaro Hatakeda, Kazuya Kumagai, Masahiro Nishimura, Yuya Hitomi, Hiromichi Soejima, Miwa Yoshitake, Ayako Iwamae, Shizuho Furuya, Masayuki Uesugi, Yuzuru Karouji, Tomohiro Usui, Tasuku…
First compositional analysis of Ryugu samples by the MicrOmega hyperspectral microscopeOPEN ACCESS
C. Pilorget, T. Okada, V. Hamm, R. Brunetto, T. Yada, D. Loizeau, L. Riu, T. Usui, A. Moussi-Soffys, K. Hatakeda, A. Nakato, K. Yogata, M. Abe, A. Aléon-Toppani, J. Carter, M. Chaigneau, B. Crane, B….
MicrOmega/MASCOT first results
Jean-Pierre Bibring, Cédric Pilorget, Lucie Riu, Vincent Hamm, Rosario Brunetto, Tra-Mi Ho, Ralph Jaumann, Yves Langevin, Aurélie Moussi, François Poulet, Mathieu Vincendon, the MicrOmega/Mascot team Planetary and Space ScienceAvailable online 4 December 2021 LINK “Highlights…
Development of a multispectral stereo-camera system comparable to Hayabusa2 Optical Navigation Camera (ONC-T) for observing samples returned from asteroid RyuguOPEN ACCESS
Yuichiro Cho, Koki Yumoto, Yuna Yabe, Shoki Mori, Jo A. Ogura, Toru Yada, Akiko Miyazaki, Kasumi Yogata, Kentaro Hatakeda, Masahiro Nishimura, Masanao Abe, Tomohiro Usui, Seiji Sugita PDF (OPEN ACCESS) “Hayabusa2 collected 5.4 g of…
Initial Descriptions of Asteroid Ryugu Samples Returned by Hayabusa2
Yada T., Abe M., Nakato A., Yogata K., Miyazaki A., Kumagai K., Hatakeda K., Okada T., Nishimura M., Furuya S., Yoshitake M., Iwamae A., Soejima H., Hitomi Y., Riu L., Lourit L., Pilorget C., Hamm…
Thermal Analysis and Constraints for the MASCOT Landing Site Selection on the Asteroid Ryugu
Barbara Cozzoni, Michael Maibaum, Maximilian Hamm Planetary and Space ScienceIn Press, Journal Pre-proof, Available online 23 June 2021 LINK “Highlights • Application of Thermal Mathematical Models for landing site selection• Day-Night temperature is main criteria…
Hayabusa2 Operation for MASCOT Delivery to Ryugu Surface
Yuya Mimasu, Tatsuaki Okada, Yuto Takei, Takanao Saiki, Tra-Mi Ho, Aurelie Moussi, Yuichi Tsuda Planetary and Space ScienceAvailable online 24 June 2021 LINK “Highlights Hayabusa2 carries several rovers and one lander The lander, named MASCOT,…
Anomalously porous boulders on (162173) Ryugu as primordial materials from its parent body
N. Sakatani, S. Tanaka, T. Okada, T. Fukuhara, L. Riu, S. Sugita, R. Honda, T. Morota, S. Kameda, Y. Yokota, E. Tatsumi, K. Yumoto, N. Hirata, A. Miura, T. Kouyama, H. Senshu, Y. Shimaki, T….
Resurfacing processes on asteroid (162173) Ryugu caused by an artificial impact of Hayabusa2’s Small Carry-on Impactor
Rie Honda, Masahiko Arakawa, Yuri Shimaki, Kei Shirai, Yasuhiro Yokota, Toshihiko Kadono, Koji Wada, Kazunori Ogawa, Ko Ishibashi, Naoya Sakatani, Satoru Nakazawa, Minami Yasui, Tomokatsu Morota, Shingo Kameda, Eri Tatsumi, Manabu Yamada, Toru Kouyama, Yuichiro…
Ejecta distribution from impact craters on Ryugu: Possible origin of the bluer units
Naoyuki Hirata, Ren Ikeya IcarusIn Press, Journal Pre-proof, Available online 15 April 2021 LINK “Highlights • We calculated the distribution of ejecta blankets from actual craters on Ryugu.• Ejecta emplacement could explain the bluish color…
Hayabusa2 Extended Mission: New Voyage to Rendezvous with a Small Asteroid Rotating with a Short PeriodOPEN ACCESS
M. Hirabayashi, Y. Mimasu, N. Sakatani, S. Watanabe, Y. Tsuda, T. Saiki, S. Kikuchi, T. Kouyama, M. Yoshikawa, S. Tanaka, S. Nakazawa, Y. Takei, F. Terui, H. Takeuchi, A. Fujii, T. Iwata, K. Tsumura, S….
Handling and Description of C-Type Asteroid Ryugu Samples Returned by Hayabusa2
T. Yada, Abe M., Nakato A., Yogata K., Miyazaki A. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2008 PDF “Hayabusa2 returned samples from C-type asteroid Ryugu last December. >5 grams of black…
Improved method of hydrous mineral detection by latitudinal distribution of 0.7-μm surface reflectance absorption on the asteroid Ryugu
Shingo Kameda, Yasuhiro Yokota, Toru Kouyama, Eri Tatsumi, Marika Ishida, Tomokatsu Morota, Rie Honda, Naoya Sakatani, Manabu Yamada, Moe Matsuoka, Hidehiko Suzuki, Yuichiro Choe, Masahiko Hayakawa, Chikatoshi Honda, Hirotaka Sawada, Kazuo Yoshioka, Kazunori Ogawa, Seiji…
Implications of High Polarization Degree for the Surface State of RyuguOPEN ACCESS
Daisuke Kuroda, Jooyeon Geem, Hiroshi Akitaya, Sunho Jin, Jun Takahashi, Koki Takahashi, Hiroyuki Naito, Kana Makino, Tomohiko Sekiguchi, Yoonsoo P. Bach, Jinguk Seo, Shuji Sato, Hiroshi Sasago, Koji S. Kawabata, Aoi Kawakami, Miyako Tozuka, Makoto…
CM carbonaceous chondrite falls and their terrestrial alterationOPEN ACCESS
Martin R. Lee, Luke Daly, Cameron Floyd, Pierre‐Etienne Martin Meteoritics & Planetary ScienceVersion of Record online: 18 January 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The CM carbonaceous chondrites provide unique insights into the composition of…
Thermally altered subsurface material of asteroid (162173) Ryugu
K. Kitazato, R. E. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, Y. Takagi, T. Nakamura, T. Hiroi, M. Matsuoka, L. Riu, Y. Nakauchi, K. Tsumura, T. Arai, H. Senshu, N. Hirata, M. A….
Valence determinations and oxybarometry on FIB‐sectioned olivine and pyroxene using correlated Ti, V, and Cr micro‐XAFS spectroscopy: Evaluation of ion‐milling effects and application to Antarctic micrometeorite grains
S. R. Sutton, A. J. Brearley, E. Dobrică, A. Lanzirotti, M. Newville, O. Tschauner Meteoritics & Planetary ScienceVersion of Record online:15 December 2020 LINK “X‐ray absorption fine structure (XAFS) spectroscopy methods have been applied to…
Spectral characterization of the craters of Ryugu as observed by the NIRS3 instrument on-board Hayabusa2
L. Riu, C. Pilorget, R. Milliken, K. Kitazato, T. Nakamura, Y. Cho, M. Matsuoka, S. Sugita, M. Abe, S. Matsuura, M. Ohtake, S. Kameda, N. Sakatani, E. Tatsumi, Y. Yokota, T. Iwata IcarusIn Press, Journal…
Global-scale albedo and spectro-photometric properties of Ryugu from NIRS3/Hayabusa2, implications for the composition of Ryugu and the representativity of the returned samples
C. Pilorget, J. Fernando, L. Riu, K. Kitazato, T. Iwata IcarusIn Press, Journal Pre-proof, Available online 29 September 2020 LINK “Highlights • We use a Bayesian approach to derive the photometric parameters from NIRS3 data.•…
Impact Experiment on Asteroid (162173) Ryugu: Structure beneath the Impact Point Revealed by In Situ Observations of the Ejecta Curtain
Toshihiko Kadono, Masahiko Arakawa, Rie Honda, Ko Ishibashi, Kazunori Ogawa, Naoya Sakatani, Hirotaka Sawada, Yuri Shimaki, Kei Shirai, Seiji Sugita, and Koji Wada The Astrophysical Journal Letters, Volume 899, Number 1 LINK “An impact experiment…
Global photometric properties of (162173) RyuguOPEN ACCESS
E. Tatsumi, D. Domingue, S. Schröder, Y. Yokota, D. Kuroda, M. Ishiguro, S. Hasegawa, T. Hiroi, R. Honda, R. Hemmi, L. Le Corre, N. Sakatani, T. Morota, M. Yamada, S. Kameda, T. Koyama, H. Suzuki,…
Chemical assessment of the explosive chamber in the projector system of Hayabusa2 for asteroid samplingOPEN ACCESS
Yoshinori Takano, Keita Yamada, Chisato Okamoto, Hirotaka Sawada, Ryuji Okazaki, Kanako Sakamoto, Yoko Kebukawa, Kento Kiryu, Takazo Shibuya, Motoko Igisu, Hajime Yano, Shogo Tachibana & Hayabusa2 project team Earth, Planets and Space volume 72, Article…
The Albedo of Ryugu: Evidence for a High Organic Abundance, as Inferred from the Hayabusa2 Touchdown ManeuverOPEN ACCESS
Christian Potiszil, Ryoji Tanaka, Katsura Kobayashi, Tak Kunihiro, Eizo Nakamura Astrobiology, Vol. 20, No. 7Hypothesis ArticlePublished Online:8 Jul 2020 LINK (OPEN ACCESS) “The Hayabusa2 mission successfully collected samples from the asteroid Ryugu last year and…
Combining IR and X‐ray microtomography data sets: Application to Itokawa particles and to Paris meteorite
Zelia Dionnet, Rosario Brunetto, Alice Aléon‐Toppani, Stefano Rubino, Donia Baklouti, Ferenc Borondics, Anne‐Cécile Buellet, Zahia Djouadi, Andrew King, Tomoki Nakamura, Alessandra Rotundi, Christophe Sandt, David Troadec, Akira Tsuchiyama Meteoritics & Planetary ScienceVersion of Record online:30…
Classification of CM chondrite breccias—Implications for the evaluation of samples from the OSIRIS‐REx and Hayabusa 2 missionsOPEN ACCESS
Sarah Lentfort, Addi Bischoff, Samuel Ebert, Markus Patzek Meteoritics & Planetary ScienceVersion of Record online: 25 May 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “CM chondrites are complex impact (mostly regolith) breccias, in which lithic clasts…
Concerns of Organic Contamination for Sample Return Space MissionsOPEN ACCESS
Queenie Hoi Shan Chan, Rhonda Stroud, Zita Martins & Hikaru Yabuta Space Science Reviews volume 216, Article number: 56 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Analysis of organic matter has been one of the major…
Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution
T. Morota, S. Sugita, Y. Cho, M. Kanamaru, E. Tatsumi, N. Sakatani, R. Honda, N. Hirata, H. Kikuchi, M. Yamada, Y. Yokota, S. Kameda, M. Matsuoka, H. Sawada, C. Honda, T. Kouyama, K. Ogawa, H….
Linking mineralogy and spectroscopy of highly aqueously altered CM and CI carbonaceous chondrites in preparation for primitive asteroid sample returnOPEN ACCESS
H. C. Bates, A. J. King, K. L. Donaldson Hanna, N. E. Bowles, S. S. Russell Meteoritics & Planetary Science First Published: 19 November 2019 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The highly hydrated, petrologic…
Advanced Curation of Astromaterials for Planetary ScienceOPEN ACCESS
Francis M. McCubbin, Christopher D. K. Herd, Toru Yada, Aurore Hutzler, Michael J. Calaway, Judith H. Allton, Cari M. Corrigan, Marc D. Fries, Andrea D. Harrington, Timothy J. McCoy, Julie L. Mitchell, Aaron B. Regberg,…
Using Dust Shed from Asteroids as Microsamples to Link Remote Measurements with Meteorite ClassesOPEN ACCESS
Barbara A. Cohen, Jamey R. Szalay, Andrew S. Rivkin, Jacob A. Richardson, Rachel E. Klima, Carolyn M. Ernst, Nancy L. Chabot, Zoltan Sternovsky, Mihaly Horányi Accepted for publication in Meteoritics and Planetary Science, May 30,…
The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes
S. Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, E. Tatsumi, M. Yamada, C. Honda, Y. Yokota, T. Kouyama, N. Sakatani, K. Ogawa, H. Suzuki, T. Okada, N. Namiki, S. Tanaka, Y. Iijima, K….
The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy
K. Kitazato, R. E. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, T. Arai, Y. Nakauchi, T. Nakamura, M. Matsuoka, H. Senshu8 N. Hirata, T. Hiroi, C. Pilorget, R. Brunetto, F. Poulet, L. Riu,…
Reflectance spectroscopy of insoluble organic matter (IOM) and carbonaceous meteorites
Hannah H. Kaplan, Ralph E. Milliken, Conel M. O’D. Alexander, Christopher D. K. Herd Meteoritics & Planetary Science First Published: 3 March 2019 LINK “Insoluble organic matter (IOM) is the major organic component of chondritic…
Ground-based Characterization of Hayabusa2 Mission Target Asteroid 162173 Ryugu: Constraining Mineralogical Composition in Preparation for Spacecraft OperationsOPEN ACCESS
Lucille Le Corre, Juan A. Sanchez, Vishnu Reddy, Driss Takir, Edward A. Cloutis, Audrey Thirouin, Kris J. Becker, Jian-Yang Li, Seiji Sugita, Eri Tatsumi PDF (OPEN ACCESS) “Asteroids that are targets of spacecraft missions are…
An evaluation method of reflectance spectra to be obtained by Hayabusa2 Near-Infrared Spectrometer (NIRS3) based on laboratory measurements of carbonaceous chondritesOPEN ACCESS
Moe Matsuoka, Tomoki Nakamura, Takahito Osawa, Takahiro Iwata, Kohei Kitazato, Masanao Abe, Yusuke Nakauchi, Takehiko Arai, Mutsumi Komatsu, Takahiro Hiroi, Naoya Imae, Akira Yamaguchi, Hideyasu Kojima Earth, Planets and Space December 2017, 69:120 First Online:04…
Characterising the CI and CI-like carbonaceous chondrites using thermogravimetric analysis and infrared spectroscopy
Ashley King, Jake Solomon, Paul Schofield, Sara Russell Earth, Planets and Space 2015, 67:198 (9 December 2015) doi:10.1186/s40623-015-0370-4 LINK (open access) “The CI and CI-like chondrites provide a record of aqueous alteration in the early…
