Space weathering acts strongly on the uppermost surface of Ryugu
Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned...
Ausführliche Beschreibung
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| Autor*in: |
Moe Matsuoka [verfasserIn] Ei-ichi Kagawa [verfasserIn] Kana Amano [verfasserIn] Tomoki Nakamura [verfasserIn] Eri Tatsumi [verfasserIn] Takahito Osawa [verfasserIn] Takahiro Hiroi [verfasserIn] Ralph Milliken [verfasserIn] Deborah Domingue [verfasserIn] Driss Takir [verfasserIn] Rosario Brunetto [verfasserIn] Antonella Barucci [verfasserIn] Kohei Kitazato [verfasserIn] Seiji Sugita [verfasserIn] Yuri Fujioka [verfasserIn] Osamu Sasaki [verfasserIn] Shiho Kobayashi [verfasserIn] Takahiro Iwata [verfasserIn] Tomokatsu Morota [verfasserIn] Yasuhiro Yokota [verfasserIn] Toru Kouyama [verfasserIn] Rie Honda [verfasserIn] Shingo Kameda [verfasserIn] Yuichiro Cho [verfasserIn] Kazuo Yoshioka [verfasserIn] Hirotaka Sawada [verfasserIn] Masahiko Hayakawa [verfasserIn] Naoya Sakatani [verfasserIn] Manabu Yamada [verfasserIn] Hidehiko Suzuki [verfasserIn] Chikatoshi Honda [verfasserIn] Kazunori Ogawa [verfasserIn] Kei Shirai [verfasserIn] Cateline Lantz [verfasserIn] Stefano Rubino [verfasserIn] Hisayoshi Yurimoto [verfasserIn] Takaaki Noguchi [verfasserIn] Ryuji Okazaki [verfasserIn] Hikaru Yabuta [verfasserIn] Hiroshi Naraoka [verfasserIn] Kanako Sakamoto [verfasserIn] Shogo Tachibana [verfasserIn] Toru Yada [verfasserIn] Masahiro Nishimura [verfasserIn] Aiko Nakato [verfasserIn] Akiko Miyazaki [verfasserIn] Kasumi Yogata [verfasserIn] Masanao Abe [verfasserIn] Tatsuaki Okada [verfasserIn] Tomohiro Usui [verfasserIn] Makoto Yoshikawa [verfasserIn] Takanao Saiki [verfasserIn] Satoshi Tanaka [verfasserIn] Fuyuto Terui [verfasserIn] Satoru Nakazawa [verfasserIn] Sei-ichiro Watanabe [verfasserIn] Yuichi Tsuda [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Übergeordnetes Werk: |
In: Communications Earth & Environment - Nature Portfolio, 2021, 4(2023), 1, Seite 12 |
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| Übergeordnetes Werk: |
volume:4 ; year:2023 ; number:1 ; pages:12 |
| Links: |
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| DOI / URN: |
10.1038/s43247-023-00991-3 |
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| Katalog-ID: |
DOAJ091831563 |
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| 520 | |a Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. | ||
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10.1038/s43247-023-00991-3 doi (DE-627)DOAJ091831563 (DE-599)DOAJeb14e4b5341545efad7b3a8dcce0ad80 DE-627 ger DE-627 rakwb eng QE1-996.5 GE1-350 Moe Matsuoka verfasserin aut Space weathering acts strongly on the uppermost surface of Ryugu 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. Geology Environmental sciences Ei-ichi Kagawa verfasserin aut Kana Amano verfasserin aut Tomoki Nakamura verfasserin aut Eri Tatsumi verfasserin aut Takahito Osawa verfasserin aut Takahiro Hiroi verfasserin aut Ralph Milliken verfasserin aut Deborah Domingue verfasserin aut Driss Takir verfasserin aut Rosario Brunetto verfasserin aut Antonella Barucci verfasserin aut Kohei Kitazato verfasserin aut Seiji Sugita verfasserin aut Yuri Fujioka verfasserin aut Osamu Sasaki verfasserin aut Shiho Kobayashi verfasserin aut Takahiro Iwata verfasserin aut Tomokatsu Morota verfasserin aut Yasuhiro Yokota verfasserin aut Toru Kouyama verfasserin aut Rie Honda verfasserin aut Shingo Kameda verfasserin aut Yuichiro Cho verfasserin aut Kazuo Yoshioka verfasserin aut Hirotaka Sawada verfasserin aut Masahiko Hayakawa verfasserin aut Naoya Sakatani verfasserin aut Manabu Yamada verfasserin aut Hidehiko Suzuki verfasserin aut Chikatoshi Honda verfasserin aut Kazunori Ogawa verfasserin aut Kei Shirai verfasserin aut Cateline Lantz verfasserin aut Stefano Rubino verfasserin aut Hisayoshi Yurimoto verfasserin aut Takaaki Noguchi verfasserin aut Ryuji Okazaki verfasserin aut Hikaru Yabuta verfasserin aut Hiroshi Naraoka verfasserin aut Kanako Sakamoto verfasserin aut Shogo Tachibana verfasserin aut Toru Yada verfasserin aut Masahiro Nishimura verfasserin aut Aiko Nakato verfasserin aut Akiko Miyazaki verfasserin aut Kasumi Yogata verfasserin aut Masanao Abe verfasserin aut Tatsuaki Okada verfasserin aut Tomohiro Usui verfasserin aut Makoto Yoshikawa verfasserin aut Takanao Saiki verfasserin aut Satoshi Tanaka verfasserin aut Fuyuto Terui verfasserin aut Satoru Nakazawa verfasserin aut Sei-ichiro Watanabe verfasserin aut Yuichi Tsuda verfasserin aut In Communications Earth & Environment Nature Portfolio, 2021 4(2023), 1, Seite 12 (DE-627)1730525067 26624435 nnns volume:4 year:2023 number:1 pages:12 https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 kostenfrei https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/toc/2662-4435 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 12 |
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10.1038/s43247-023-00991-3 doi (DE-627)DOAJ091831563 (DE-599)DOAJeb14e4b5341545efad7b3a8dcce0ad80 DE-627 ger DE-627 rakwb eng QE1-996.5 GE1-350 Moe Matsuoka verfasserin aut Space weathering acts strongly on the uppermost surface of Ryugu 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. Geology Environmental sciences Ei-ichi Kagawa verfasserin aut Kana Amano verfasserin aut Tomoki Nakamura verfasserin aut Eri Tatsumi verfasserin aut Takahito Osawa verfasserin aut Takahiro Hiroi verfasserin aut Ralph Milliken verfasserin aut Deborah Domingue verfasserin aut Driss Takir verfasserin aut Rosario Brunetto verfasserin aut Antonella Barucci verfasserin aut Kohei Kitazato verfasserin aut Seiji Sugita verfasserin aut Yuri Fujioka verfasserin aut Osamu Sasaki verfasserin aut Shiho Kobayashi verfasserin aut Takahiro Iwata verfasserin aut Tomokatsu Morota verfasserin aut Yasuhiro Yokota verfasserin aut Toru Kouyama verfasserin aut Rie Honda verfasserin aut Shingo Kameda verfasserin aut Yuichiro Cho verfasserin aut Kazuo Yoshioka verfasserin aut Hirotaka Sawada verfasserin aut Masahiko Hayakawa verfasserin aut Naoya Sakatani verfasserin aut Manabu Yamada verfasserin aut Hidehiko Suzuki verfasserin aut Chikatoshi Honda verfasserin aut Kazunori Ogawa verfasserin aut Kei Shirai verfasserin aut Cateline Lantz verfasserin aut Stefano Rubino verfasserin aut Hisayoshi Yurimoto verfasserin aut Takaaki Noguchi verfasserin aut Ryuji Okazaki verfasserin aut Hikaru Yabuta verfasserin aut Hiroshi Naraoka verfasserin aut Kanako Sakamoto verfasserin aut Shogo Tachibana verfasserin aut Toru Yada verfasserin aut Masahiro Nishimura verfasserin aut Aiko Nakato verfasserin aut Akiko Miyazaki verfasserin aut Kasumi Yogata verfasserin aut Masanao Abe verfasserin aut Tatsuaki Okada verfasserin aut Tomohiro Usui verfasserin aut Makoto Yoshikawa verfasserin aut Takanao Saiki verfasserin aut Satoshi Tanaka verfasserin aut Fuyuto Terui verfasserin aut Satoru Nakazawa verfasserin aut Sei-ichiro Watanabe verfasserin aut Yuichi Tsuda verfasserin aut In Communications Earth & Environment Nature Portfolio, 2021 4(2023), 1, Seite 12 (DE-627)1730525067 26624435 nnns volume:4 year:2023 number:1 pages:12 https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 kostenfrei https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/toc/2662-4435 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 12 |
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10.1038/s43247-023-00991-3 doi (DE-627)DOAJ091831563 (DE-599)DOAJeb14e4b5341545efad7b3a8dcce0ad80 DE-627 ger DE-627 rakwb eng QE1-996.5 GE1-350 Moe Matsuoka verfasserin aut Space weathering acts strongly on the uppermost surface of Ryugu 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. Geology Environmental sciences Ei-ichi Kagawa verfasserin aut Kana Amano verfasserin aut Tomoki Nakamura verfasserin aut Eri Tatsumi verfasserin aut Takahito Osawa verfasserin aut Takahiro Hiroi verfasserin aut Ralph Milliken verfasserin aut Deborah Domingue verfasserin aut Driss Takir verfasserin aut Rosario Brunetto verfasserin aut Antonella Barucci verfasserin aut Kohei Kitazato verfasserin aut Seiji Sugita verfasserin aut Yuri Fujioka verfasserin aut Osamu Sasaki verfasserin aut Shiho Kobayashi verfasserin aut Takahiro Iwata verfasserin aut Tomokatsu Morota verfasserin aut Yasuhiro Yokota verfasserin aut Toru Kouyama verfasserin aut Rie Honda verfasserin aut Shingo Kameda verfasserin aut Yuichiro Cho verfasserin aut Kazuo Yoshioka verfasserin aut Hirotaka Sawada verfasserin aut Masahiko Hayakawa verfasserin aut Naoya Sakatani verfasserin aut Manabu Yamada verfasserin aut Hidehiko Suzuki verfasserin aut Chikatoshi Honda verfasserin aut Kazunori Ogawa verfasserin aut Kei Shirai verfasserin aut Cateline Lantz verfasserin aut Stefano Rubino verfasserin aut Hisayoshi Yurimoto verfasserin aut Takaaki Noguchi verfasserin aut Ryuji Okazaki verfasserin aut Hikaru Yabuta verfasserin aut Hiroshi Naraoka verfasserin aut Kanako Sakamoto verfasserin aut Shogo Tachibana verfasserin aut Toru Yada verfasserin aut Masahiro Nishimura verfasserin aut Aiko Nakato verfasserin aut Akiko Miyazaki verfasserin aut Kasumi Yogata verfasserin aut Masanao Abe verfasserin aut Tatsuaki Okada verfasserin aut Tomohiro Usui verfasserin aut Makoto Yoshikawa verfasserin aut Takanao Saiki verfasserin aut Satoshi Tanaka verfasserin aut Fuyuto Terui verfasserin aut Satoru Nakazawa verfasserin aut Sei-ichiro Watanabe verfasserin aut Yuichi Tsuda verfasserin aut In Communications Earth & Environment Nature Portfolio, 2021 4(2023), 1, Seite 12 (DE-627)1730525067 26624435 nnns volume:4 year:2023 number:1 pages:12 https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 kostenfrei https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/toc/2662-4435 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 12 |
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10.1038/s43247-023-00991-3 doi (DE-627)DOAJ091831563 (DE-599)DOAJeb14e4b5341545efad7b3a8dcce0ad80 DE-627 ger DE-627 rakwb eng QE1-996.5 GE1-350 Moe Matsuoka verfasserin aut Space weathering acts strongly on the uppermost surface of Ryugu 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. Geology Environmental sciences Ei-ichi Kagawa verfasserin aut Kana Amano verfasserin aut Tomoki Nakamura verfasserin aut Eri Tatsumi verfasserin aut Takahito Osawa verfasserin aut Takahiro Hiroi verfasserin aut Ralph Milliken verfasserin aut Deborah Domingue verfasserin aut Driss Takir verfasserin aut Rosario Brunetto verfasserin aut Antonella Barucci verfasserin aut Kohei Kitazato verfasserin aut Seiji Sugita verfasserin aut Yuri Fujioka verfasserin aut Osamu Sasaki verfasserin aut Shiho Kobayashi verfasserin aut Takahiro Iwata verfasserin aut Tomokatsu Morota verfasserin aut Yasuhiro Yokota verfasserin aut Toru Kouyama verfasserin aut Rie Honda verfasserin aut Shingo Kameda verfasserin aut Yuichiro Cho verfasserin aut Kazuo Yoshioka verfasserin aut Hirotaka Sawada verfasserin aut Masahiko Hayakawa verfasserin aut Naoya Sakatani verfasserin aut Manabu Yamada verfasserin aut Hidehiko Suzuki verfasserin aut Chikatoshi Honda verfasserin aut Kazunori Ogawa verfasserin aut Kei Shirai verfasserin aut Cateline Lantz verfasserin aut Stefano Rubino verfasserin aut Hisayoshi Yurimoto verfasserin aut Takaaki Noguchi verfasserin aut Ryuji Okazaki verfasserin aut Hikaru Yabuta verfasserin aut Hiroshi Naraoka verfasserin aut Kanako Sakamoto verfasserin aut Shogo Tachibana verfasserin aut Toru Yada verfasserin aut Masahiro Nishimura verfasserin aut Aiko Nakato verfasserin aut Akiko Miyazaki verfasserin aut Kasumi Yogata verfasserin aut Masanao Abe verfasserin aut Tatsuaki Okada verfasserin aut Tomohiro Usui verfasserin aut Makoto Yoshikawa verfasserin aut Takanao Saiki verfasserin aut Satoshi Tanaka verfasserin aut Fuyuto Terui verfasserin aut Satoru Nakazawa verfasserin aut Sei-ichiro Watanabe verfasserin aut Yuichi Tsuda verfasserin aut In Communications Earth & Environment Nature Portfolio, 2021 4(2023), 1, Seite 12 (DE-627)1730525067 26624435 nnns volume:4 year:2023 number:1 pages:12 https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 kostenfrei https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/toc/2662-4435 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 12 |
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10.1038/s43247-023-00991-3 doi (DE-627)DOAJ091831563 (DE-599)DOAJeb14e4b5341545efad7b3a8dcce0ad80 DE-627 ger DE-627 rakwb eng QE1-996.5 GE1-350 Moe Matsuoka verfasserin aut Space weathering acts strongly on the uppermost surface of Ryugu 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. Geology Environmental sciences Ei-ichi Kagawa verfasserin aut Kana Amano verfasserin aut Tomoki Nakamura verfasserin aut Eri Tatsumi verfasserin aut Takahito Osawa verfasserin aut Takahiro Hiroi verfasserin aut Ralph Milliken verfasserin aut Deborah Domingue verfasserin aut Driss Takir verfasserin aut Rosario Brunetto verfasserin aut Antonella Barucci verfasserin aut Kohei Kitazato verfasserin aut Seiji Sugita verfasserin aut Yuri Fujioka verfasserin aut Osamu Sasaki verfasserin aut Shiho Kobayashi verfasserin aut Takahiro Iwata verfasserin aut Tomokatsu Morota verfasserin aut Yasuhiro Yokota verfasserin aut Toru Kouyama verfasserin aut Rie Honda verfasserin aut Shingo Kameda verfasserin aut Yuichiro Cho verfasserin aut Kazuo Yoshioka verfasserin aut Hirotaka Sawada verfasserin aut Masahiko Hayakawa verfasserin aut Naoya Sakatani verfasserin aut Manabu Yamada verfasserin aut Hidehiko Suzuki verfasserin aut Chikatoshi Honda verfasserin aut Kazunori Ogawa verfasserin aut Kei Shirai verfasserin aut Cateline Lantz verfasserin aut Stefano Rubino verfasserin aut Hisayoshi Yurimoto verfasserin aut Takaaki Noguchi verfasserin aut Ryuji Okazaki verfasserin aut Hikaru Yabuta verfasserin aut Hiroshi Naraoka verfasserin aut Kanako Sakamoto verfasserin aut Shogo Tachibana verfasserin aut Toru Yada verfasserin aut Masahiro Nishimura verfasserin aut Aiko Nakato verfasserin aut Akiko Miyazaki verfasserin aut Kasumi Yogata verfasserin aut Masanao Abe verfasserin aut Tatsuaki Okada verfasserin aut Tomohiro Usui verfasserin aut Makoto Yoshikawa verfasserin aut Takanao Saiki verfasserin aut Satoshi Tanaka verfasserin aut Fuyuto Terui verfasserin aut Satoru Nakazawa verfasserin aut Sei-ichiro Watanabe verfasserin aut Yuichi Tsuda verfasserin aut In Communications Earth & Environment Nature Portfolio, 2021 4(2023), 1, Seite 12 (DE-627)1730525067 26624435 nnns volume:4 year:2023 number:1 pages:12 https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 kostenfrei https://doi.org/10.1038/s43247-023-00991-3 kostenfrei https://doaj.org/toc/2662-4435 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2057 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 12 |
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Moe Matsuoka @@aut@@ Ei-ichi Kagawa @@aut@@ Kana Amano @@aut@@ Tomoki Nakamura @@aut@@ Eri Tatsumi @@aut@@ Takahito Osawa @@aut@@ Takahiro Hiroi @@aut@@ Ralph Milliken @@aut@@ Deborah Domingue @@aut@@ Driss Takir @@aut@@ Rosario Brunetto @@aut@@ Antonella Barucci @@aut@@ Kohei Kitazato @@aut@@ Seiji Sugita @@aut@@ Yuri Fujioka @@aut@@ Osamu Sasaki @@aut@@ Shiho Kobayashi @@aut@@ Takahiro Iwata @@aut@@ Tomokatsu Morota @@aut@@ Yasuhiro Yokota @@aut@@ Toru Kouyama @@aut@@ Rie Honda @@aut@@ Shingo Kameda @@aut@@ Yuichiro Cho @@aut@@ Kazuo Yoshioka @@aut@@ Hirotaka Sawada @@aut@@ Masahiko Hayakawa @@aut@@ Naoya Sakatani @@aut@@ Manabu Yamada @@aut@@ Hidehiko Suzuki @@aut@@ Chikatoshi Honda @@aut@@ Kazunori Ogawa @@aut@@ Kei Shirai @@aut@@ Cateline Lantz @@aut@@ Stefano Rubino @@aut@@ Hisayoshi Yurimoto @@aut@@ Takaaki Noguchi @@aut@@ Ryuji Okazaki @@aut@@ Hikaru Yabuta @@aut@@ Hiroshi Naraoka @@aut@@ Kanako Sakamoto @@aut@@ Shogo Tachibana @@aut@@ Toru Yada @@aut@@ Masahiro Nishimura @@aut@@ Aiko Nakato @@aut@@ Akiko Miyazaki @@aut@@ Kasumi Yogata @@aut@@ Masanao Abe @@aut@@ Tatsuaki Okada @@aut@@ Tomohiro Usui @@aut@@ Makoto Yoshikawa @@aut@@ Takanao Saiki @@aut@@ Satoshi Tanaka @@aut@@ Fuyuto Terui @@aut@@ Satoru Nakazawa @@aut@@ Sei-ichiro Watanabe @@aut@@ Yuichi Tsuda @@aut@@ |
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Moe Matsuoka |
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Moe Matsuoka misc QE1-996.5 misc GE1-350 misc Geology misc Environmental sciences Space weathering acts strongly on the uppermost surface of Ryugu |
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QE1-996.5 GE1-350 Space weathering acts strongly on the uppermost surface of Ryugu |
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Space weathering acts strongly on the uppermost surface of Ryugu |
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Moe Matsuoka Ei-ichi Kagawa Kana Amano Tomoki Nakamura Eri Tatsumi Takahito Osawa Takahiro Hiroi Ralph Milliken Deborah Domingue Driss Takir Rosario Brunetto Antonella Barucci Kohei Kitazato Seiji Sugita Yuri Fujioka Osamu Sasaki Shiho Kobayashi Takahiro Iwata Tomokatsu Morota Yasuhiro Yokota Toru Kouyama Rie Honda Shingo Kameda Yuichiro Cho Kazuo Yoshioka Hirotaka Sawada Masahiko Hayakawa Naoya Sakatani Manabu Yamada Hidehiko Suzuki Chikatoshi Honda Kazunori Ogawa Kei Shirai Cateline Lantz Stefano Rubino Hisayoshi Yurimoto Takaaki Noguchi Ryuji Okazaki Hikaru Yabuta Hiroshi Naraoka Kanako Sakamoto Shogo Tachibana Toru Yada Masahiro Nishimura Aiko Nakato Akiko Miyazaki Kasumi Yogata Masanao Abe Tatsuaki Okada Tomohiro Usui Makoto Yoshikawa Takanao Saiki Satoshi Tanaka Fuyuto Terui Satoru Nakazawa Sei-ichiro Watanabe Yuichi Tsuda |
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space weathering acts strongly on the uppermost surface of ryugu |
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Space weathering acts strongly on the uppermost surface of Ryugu |
| abstract |
Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. |
| abstractGer |
Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. |
| abstract_unstemmed |
Abstract Returned samples from Cb-type asteroid (162173) Ryugu exhibit very dark spectra in visible and near-infrared ranges, generally consistent with the Hayabusa2 observations. A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. Extremely homogeneous spectra of the Ryugu’s global surface is in contrast with the heterogeneous S-type asteroid (25143) Itokawa’s spectra, which suggests space weathering has proceeded more rapidly on Cb-type asteroids than S-type asteroids. |
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Space weathering acts strongly on the uppermost surface of Ryugu |
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https://doi.org/10.1038/s43247-023-00991-3 https://doaj.org/article/eb14e4b5341545efad7b3a8dcce0ad80 https://doaj.org/toc/2662-4435 |
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Ei-ichi Kagawa Kana Amano Tomoki Nakamura Eri Tatsumi Takahito Osawa Takahiro Hiroi Ralph Milliken Deborah Domingue Driss Takir Rosario Brunetto Antonella Barucci Kohei Kitazato Seiji Sugita Yuri Fujioka Osamu Sasaki Shiho Kobayashi Takahiro Iwata Tomokatsu Morota Yasuhiro Yokota Toru Kouyama Rie Honda Shingo Kameda Yuichiro Cho Kazuo Yoshioka Hirotaka Sawada Masahiko Hayakawa Naoya Sakatani Manabu Yamada Hidehiko Suzuki Chikatoshi Honda Kazunori Ogawa Kei Shirai Cateline Lantz Stefano Rubino Hisayoshi Yurimoto Takaaki Noguchi Ryuji Okazaki Hikaru Yabuta Hiroshi Naraoka Kanako Sakamoto Shogo Tachibana Toru Yada Masahiro Nishimura Aiko Nakato Akiko Miyazaki Kasumi Yogata Masanao Abe Tatsuaki Okada Tomohiro Usui Makoto Yoshikawa Takanao Saiki Satoshi Tanaka Fuyuto Terui Satoru Nakazawa Sei-ichiro Watanabe Yuichi Tsuda |
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Ei-ichi Kagawa Kana Amano Tomoki Nakamura Eri Tatsumi Takahito Osawa Takahiro Hiroi Ralph Milliken Deborah Domingue Driss Takir Rosario Brunetto Antonella Barucci Kohei Kitazato Seiji Sugita Yuri Fujioka Osamu Sasaki Shiho Kobayashi Takahiro Iwata Tomokatsu Morota Yasuhiro Yokota Toru Kouyama Rie Honda Shingo Kameda Yuichiro Cho Kazuo Yoshioka Hirotaka Sawada Masahiko Hayakawa Naoya Sakatani Manabu Yamada Hidehiko Suzuki Chikatoshi Honda Kazunori Ogawa Kei Shirai Cateline Lantz Stefano Rubino Hisayoshi Yurimoto Takaaki Noguchi Ryuji Okazaki Hikaru Yabuta Hiroshi Naraoka Kanako Sakamoto Shogo Tachibana Toru Yada Masahiro Nishimura Aiko Nakato Akiko Miyazaki Kasumi Yogata Masanao Abe Tatsuaki Okada Tomohiro Usui Makoto Yoshikawa Takanao Saiki Satoshi Tanaka Fuyuto Terui Satoru Nakazawa Sei-ichiro Watanabe Yuichi Tsuda |
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1730525067 |
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QE - Geology |
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10.1038/s43247-023-00991-3 |
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QE1-996.5 |
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2024-07-03T22:31:34.694Z |
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A critical difference is that a structural water absorption of hydrous silicates is around twice as deep in the returned samples compared with those of Ryugu’s surface, suggesting Ryugu surface is more dehydrated. Here we use laboratory experiments data to indicate the spectral differences between returned samples and asteroid surface are best explained if Ryugu surface has (1) higher porosity, (2) larger particle size, and (3) more space-weathered condition, with the last being the most effective. On Ryugu, space weathering by micrometeoroid bombardments promoting dehydration seem to be more effective than that by solar-wind implantation. 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