Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samples
-
Published:2023-03-28
Issue:1
Volume:75
Page:
-
ISSN:1880-5981
-
Container-title:Earth, Planets and Space
-
language:en
-
Short-container-title:Earth Planets Space
Author:
Hatakeda KentaroORCID, Yada Toru, Abe Masanao, Okada Tatsuaki, Nakato Aiko, Yogata Kasumi, Miyazaki Akiko, Kumagai Kazuya, Nishimura Masahiro, Hitomi Yuya, Soejima Hiromichi, Nagashima Kana, Yoshitake Miwa, Iwamae Ayako, Furuya Shizuho, Usui Tomohiro, Kitazato Kohei
Abstract
AbstractSurface and subsurface materials of C-type near-Earth asteroid 162173 Ryugu were collected and successfully returned to the Earth in the Hayabusa2 mission. Fourier Transform Infrared Spectroscopy (FTIR) has been conducted to characterize these returned samples as one of the initial descriptions in a non-destructive manner under a purified nitrogen condition without terrestrial contamination. We selected the individual grains and aggregate samples that were not severely influenced by the reflection of incident beam at the sapphire dish and analyzed their reflectance spectra using the primary component analysis (PCA). The result indicates that Ryugu returned samples are highly homogeneous with only a little heterogeneity. The average spectrum of the main PCA group is represented by four absorption bands at 2.7, 3.05, 3.4, and 3.95 μm. The spectral feature is consistent with that obtained from bulk FTIR measurements, indicating potential presence of hydroxyl, organics, and carbonates. Rarely observed types of grains with unique spectra are categorized into three groups: significantly high reflectance, carbonates, and hydroxyl compounds with broad OH absorption.
Graphical Abstract
Publisher
Springer Science and Business Media LLC
Subject
Space and Planetary Science,Geology
Reference14 articles.
1. Arakawa M, Saiki T, Wada K, Ogawa K, Kadono T, Shirai K, Sawada H, Ishibashi K, Honda R, Sakatani N, Iijima Y, Okamoto C, Yano H, Takagi Y, Hayakawa M, Michel P, Jutzi M, Shimaki Y, Kimura S, Mimasu Y, Toda T, Imamura H, Nakazawa S, Hayakawa H, Sugita S, Morota T, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Matsuoka M, Yamada M, Kouyama T, Honda C, Tsuda Y, Watanabe S, Yoshikawa M, Tanaka S, Terui F, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Takeuchi H, Yamamoto Y, Okada T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Iwata T, Ozaki M, Abe M, Namiki N, Kitazato K, Tachibana S, Ikeda H, Hirata N, Hirata N, Noguchi R, Miura A (2020) An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science 368:67–71. https://doi.org/10.1126/science.aaz1701 2. Bus SJ, Binzel RP (2002) Phase II of the small main-belt asteroid spectro-scopic survey: the observations. Icarus 158:106–145. https://doi.org/10.1006/icar.2002.6857 3. Cho Y, Yumoto K, Yabe Y, Mori S, Ogura JA, Yada T, Miyazaki A, Yogata K, Hatakeda K, Nishimura M, Abe M, Usui T, Sugita S (2022) Development of a multispectral stereo-camera system comparable to Hayabusa2 Optical Navigation Camera (ONC-T) for observing samples returned from asteroid (162173) Ryugu. Planet Space Sci (in Press). https://doi.org/10.1016/j.pss.2022.105549 4. Ito M, Tomioka N, Uesugi M, Yamaguchi A, Shirai N, Ohigashi T, Liu MC, Greenwood RC, Kimura M, Imae N, Uesugi K, Nakato A, Yogata K, Yuzawa H, Kodama Y, Tsuchiyama A, Yasutake M, Findlay R, Franchi IA, Malley JA, McCain KA, Matsuda N, McKeegan KD, Hirahara K, Takeuchi A, Sekimoto S, Sakurai I, Okada I, Karouji Y, Arakawa M, Fujii A, Fujimoto M, Hayakawa M, Hirata N, Hirata N, Honda R, Honda C, Hosoda S, Iijima Y, Ikeda H, Ishiguro M, Ishihara Y, Iwata T, Kawahara K, Kikuchi S, Kitazato K, Matsumoto K, Matsuoka M, Michikami T, Mimasu Y, Miura A, Mori O, Morota T, Nakazawa S, Namiki N, Noda H, Noguchi R, Ogawa N, Ogawa K, Okada T, Okamoto C, Ono G, Ozaki M, Saiki T, Sakatani N, Sawada H, Senshu H, Shimaki Y, Shirai K, Sugita S, Takei Y, Takeuchi H, Tanaka S, Tatsumi E, Terui F, Tsukizaki R, Wada K, Yamada M, Yamada T, Yamamoto Y, Yano H, Yokota Y, Yoshihara K, Yoshikawa M, Yoshikawa K, Fukai R, Furuya S, Hatakeda K, Hayashi T, Hitomi Y, Kumagai K, Miyazaki A, Nishimura M, Soejima H, Iwamae A, Yamamoto D, Yoshitake M, Yada T, Abe M, Usui T, Watanabe S, Tsuda Y (2022) A pristine record of outer solar system materials from asteroid Ryugu’s returned sample. Nat Astron. https://doi.org/10.1038/s41550-022-01745-5 5. Kitazato K, Milliken RE, Iwata T, Abe M, Ohtake M, Matsuura S, Arai T, Nakauchi Y, Nakamura T, Matsuoka M, Senshu H, Hirata N, Hiroi T, Pilorget C, Brunetto R, Poulet F, Riu L, Bibring J-P, Takir D, Domingue DL, Vilas F, Barucci MA, Perna D, Palomba E, Galiano A, Tsumura K, Osawa T, Komatsu M, Nakato A, Arai T, Takato N, Matsunaga T, Takagi Y, Matsumoto K, Kouyama T, Yokota Y, Tatsumi E, Sakatani N, Yamamoto Y, Okada T, Sugita S, Honda R, Morota T, Kameda S, Sawada H, Honda C, Yamada M, Suzuki H, Yoshioka K, Hayakawa M, Ogawa K, Cho Y, Shirai K, Shimaki Y, Hirata N, Yamaguchi A, Ogawa N, Terui F, Yamaguchi T, Takei Y, Saiki T, Nakazawa S, Tanaka S, Yoshikawa M, Watanabe S, Tsuda Y (2019) The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy. Science 364:272–275. https://doi.org/10.1126/science.aav7432
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|