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44 results on '"Lantz, Cateline"'

2. Correlated IR-SEM-TEM studies of three different grains from Ryugu: From the initial material to post-accretional processes

Author

Aléon-Toppani, Alice, Brunetto, Rosario, Dionnet, Zélia, Rubino, Stefano, Baklouti, Donia, Brisset, François, Vallet, Maxime, Heripre, Eva, Nakamura, Tomoki, Lantz, Cateline, Djouadi, Zahia, Borondics, Ferenc, Sandt, Christophe, Troadec, David, Mivumbi, Obadias, Matsumoto, Megumi, Amano, Kana, Morita, Tomoyo, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohira, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2024
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3. ExoMars Raman Laser Spectrometer RLS, a tool for the potential recognition of wet target craters on Mars

Author

Veneranda, Marco, Lopez-Reyes, Guillermo, Manrique, Jose Antonio, Medina, Jesus, Ruiz-Galende, Patricia, Torre-Fdez, Imanol, Castro, Kepa, Lantz, Cateline, Poulet, Francois, Dypvik, Henning, Werner, Stephanie C., and Rull, Fernando

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

In the present work, NIR, LIBS, Raman and XRD techniques have been complementarily used to carry out a comprehensive characterization of a terrestrial analogue selected from the Chesapeake Bay Impact Structure (CBIS). The obtained data clearly highlight the key role of Raman spectroscopy in the detection of minor and trace compounds, through which inferences about geological processes occurred in the CBIS can be extrapolated. Beside the use of commercial systems, further Raman analyses were performed by the Raman Laser Spectrometer (RLS) ExoMars Simulator. This instrument represents the most reliable tool to effectively predict the scientific capabilities of the ExoMars/Raman system that will be deployed on Mars in 2021. By emulating the analytical procedures and operational restrictions established by the ExoMars mission rover design, it was proved that the RLS ExoMars Simulator is able to detect the amorphization of quartz, which constitutes an analytical clue of the impact origin of craters. On the other hand, the detection of barite and siderite, compounds crystallizing under hydrothermal conditions, helps to indirectly confirm the presence of water in impact targets. Furthermore, the RLS ExoMars Simulator capability of performing smart molecular mappings was also evaluated. According to the obtained results, the algorithms developed for its operation provide a great analytical advantage over most of the automatic analysis systems employed by commercial Raman instruments, encouraging its application for many additional scientific and commercial purposes.

Published
2021
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4. ExoMars Raman Laser Spectrometer RLS, a tool to semi-quantify the serpentinization degree of olivine-rich rocks on Mars

Author

Veneranda, Marco, Lopez-Reyes, Guillermo, Sanchez, Elena Pascual, Krzesinska, Agata M., Manrique-Martinez, Jose Antonio, Sanz-Arranz, Aurelio, Lantz, Cateline, Lalla, Emmanuel, Moral, Andoni, Medina, Jesus, Poulet, Francois, Dypvik, Henning, Werner, Stephanie C., Vago, Jorge L., and Rull, Fernando

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We evaluate what will be the effectiveness of the ExoMars Raman Laser Spectrometer (RLS) to determine the degree of serpentinization of olivine-rich units on Mars. We selected terrestrial analogues of martian ultramafic rocks from the Leka Ophiolite Complex (LOC) and analyzed them with both laboratory and flight-like analytical instruments. We first studied the mineralogical composition of the samples (mostly olivine and serpentine) with state-of-the-art diffractometric and spectroscopic laboratory systems. We compared these results with those obtained using our RLS ExoMars Simulator. Our work shows that the RLS ExoMars Simulator successfully identified all major phases. Moreover, when emulating the automatic operating mode of the flight instrument, the RLS ExoMars simulator also detected several minor compounds, some of which were not observed by NIR and XRD. Thereafter, we produced RLS dedicated calibration curves (R2 between 0.9993 and 0.9995 with an uncertainty between 3.0% and 5.2% with a confidence interval of 95%) to estimate the relative content of olivine and serpentine in the samples. Our results show that RLS can be very effective to identify serpentine, a scientific target of primary importance for the potential detection of biosignatures on Mars the main objective of the ExoMars rover mission.

Published
2021
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6. Space weathering acts strongly on the uppermost surface of Ryugu

Author

Matsuoka, Moe, Kagawa, Ei-ichi, Amano, Kana, Nakamura, Tomoki, Tatsumi, Eri, Osawa, Takahito, Hiroi, Takahiro, Milliken, Ralph, Domingue, Deborah, Takir, Driss, Brunetto, Rosario, Barucci, Antonella, Kitazato, Kohei, Sugita, Seiji, Fujioka, Yuri, Sasaki, Osamu, Kobayashi, Shiho, Iwata, Takahiro, Morota, Tomokatsu, Yokota, Yasuhiro, Kouyama, Toru, Honda, Rie, Kameda, Shingo, Cho, Yuichiro, Yoshioka, Kazuo, Sawada, Hirotaka, Hayakawa, Masahiko, Sakatani, Naoya, Yamada, Manabu, Suzuki, Hidehiko, Honda, Chikatoshi, Ogawa, Kazunori, Shirai, Kei, Lantz, Cateline, Rubino, Stefano, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Yada, Toru, Nishimura, Masahiro, Nakato, Aiko, Miyazaki, Akiko, Yogata, Kasumi, Abe, Masanao, Okada, Tatsuaki, Usui, Tomohiro, Yoshikawa, Makoto, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Nakazawa, Satoru, Watanabe, Sei-ichiro, and Tsuda, Yuichi

Published
2023
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7. Small grains from Ryugu: handling and analysis pipeline for infrared synchrotron microspectroscopy

Author

Rubino, Stefano, Dionnet, Zélia, Aléon-Toppani, Alice, Brunetto, Rosario, Nakamura, Tomoki, Baklouti, Donia, Djouadi, Zahia, Lantz, Cateline, Mivumbi, Obadias, Borondics, Ferenc, Lefrançois, Stephane, Sandt, Christophe, Capitani, Francesco, Héripré, Eva, Troadec, David, Matsumoto, Megumi, Amano, Kana, Morita, Tomoyo, Yurimoto, Hisayoshi, Noguchi, Takaaki, Okazaki, Ryuji, Yabuta, Hikaru, Naraoka, Hiroshi, Sakamoto, Kanako, Tachibana, Shogo, Watanabe, Seiichiro, and Tsuda, Yuichi

Published
2023
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8. A spectroscopic survey of the small near-Earth asteroid population: peculiar taxonomic distribution and phase reddening

Author

Perna, Davide, Barucci, Maria Antonietta, Fulchignoni, Marcello, Popescu, Marcel, Belskaya, Irina, Fornasier, Sonia, Doressoundiram, Alain, Lantz, Cateline, and Merlin, Frederic

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We present the results of the first-ever visible spectroscopic survey fully dedicated to the small (absolute magnitude H>20) near-Earth asteroid (NEA) population. Observations have been performed at the New Technology Telescope (NTT) of the European Southern Observatory (ESO), during a 30-night Guaranteed Time Observations programme, in the framework of the European Commission financed NEOShield-2 project. The visible spectra of 147 objects have been obtained and taxonomically classified. They show a peculiar taxonomic distribution, with respect to larger NEAs. In particular, olivine-rich A-types and organic-rich D-types are more abundant than what could be expected by extrapolating the taxonomic distribution of larger NEAs. Such results have implications for the investigation of the first phases of solar system history, including the delivery of prebiotic material on the early Earth. Having been obtained over a large range of solar phase angles, our data allowed us to evidence peculiar phase reddening behaviours for asteroids belonging to different taxonomic types. Low-albedo asteroids display no or limited phase reddening, compared to moderate- and high-albedo objects. This result suggests a promising novel way to distinguish primitive asteroids in the X-complex. In agreement with previous laboratory experiments, olivine-rich surfaces are the most affected by phase reddening., Comment: Accepted for publication in Planetary and Space Science. 22 pages, 6 figures

Published
2018
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10. (469219) Kamoʻoalewa, A Space Weathering Matured Small NEA: Target of the Tianwen-2 Sample-Return Mission

Author

Li, Yang, primary, Zhang, Pengfei, additional, Zhang, Guozheng, additional, Yan, Xiaoran, additional, Granvik, Mikael, additional, Zhang, Yongxiong, additional, Niu, Yunbo, additional, Pang, Ronghua, additional, Wei, Zichen, additional, Wang, Pengyue, additional, Zhang, Qinwei, additional, Lu, Xuejin, additional, Hu, Shoucun, additional, Cheng, Bin, additional, Vernazza, Pierre, additional, Hiroi, Takahiro, additional, Cloutis, Edward, additional, DeMeo, Francesca, additional, Jiang, Te, additional, Beck, Pierre, additional, Ip, W.-H., additional, Fenucci, Marco, additional, Zhao, Hai-Bin, additional, Wang, Xiaobin, additional, Lu, Xiaoping, additional, Zhang, Jiang, additional, Ling, Zongcheng, additional, Lantz, Cateline, additional, Geem, Jooyeon, additional, Wu, Xing, additional, Lin, Honglei, additional, Zhao, Sizhe, additional, Wang, Juntao, additional, He, Zhiping, additional, Zhang, Yonglong, additional, Zhou, Li-Yong, additional, Zhang, Xiliang, additional, Li, Shijie, additional, Hu, Sen, additional, Yang, Wei, additional, Li, Xiongyao, additional, Zhang, Xiaoping, additional, Liu, Jiahui, additional, Zhang, Peng, additional, Zhang, Guang, additional, and Lin, Yangting, additional

Published
2024
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11. Three‐dimensional multiscale assembly of phyllosilicates, organics, and carbonates in small Ryugu fragments.

Author

Dionnet, Zelia, Rubino, Stefano, Aléon‐Toppani, Alice, Brunetto, Rosario, Tsuchiyama, Akira, Lantz, Cateline, Djouadi, Zahia, Baklouti, Donia, Nakamura, Tomoki, Borondics, Ferenc, Sandt, Christophe, Heripre, Eva, Troadec, David, Mivumbi, Obadias, Aléon, Jérome, Ternier, Theo, Matsumoto, Megumi, Amano, Kana, Morita, Tomoyo, and Yurimoto, Hisayoshi

Subjects
ORGANIC compounds, PHYLLOSILICATES, TOMOGRAPHY, CARBONATES, SILICATES
Abstract

We report μm‐scale nondestructive infrared (IR) hyperspectral results (IR computed tomography, IR‐CT) in 3‐D and IR surface imaging, IR‐S) in 2‐D, at SOLEIL) combined with X‐ray nano‐computed tomography analyses (at SPring‐8) performed on eight small Ryugu fragments extracted from mm‐sized grains coming both from touchdown first and second sites. We describe the multiscale assembly of phyllosilicates, carbonates, sulfides, oxides, and organics. Two types of silicates, as well as diverse kinds of organic matter, were detected inside Ryugu material. Their spatial correlations are described to discuss the role of the mineralogical microenvironments in the formation/evolution of organic matter. In particular, we have shown that there is a redistribution of the organic matter diffuse component during aqueous alteration on the parent body, with a preferential circulation among fine‐grained phyllosilicates. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Small grains from Ryugu: handling and analysis pipeline for Infrared Synchrotron Microspectroscopy

Author

Rubino, Stefano, primary, Dionnet, Zélia, additional, Aléon-Toppani, Alice, additional, Brunetto, Rosario, additional, Nakamura, Tomoki, additional, Baklouti, Donia, additional, Djouadi, Zahia, additional, Lantz, Cateline, additional, Mivumbi, Obadias, additional, Borondics, Ferenc, additional, Lefrançois, Stephane, additional, Sandt, Christophe, additional, Capitani, Francesco, additional, Héripré, Eva, additional, Troadec, David, additional, Matsumoto, Megumi, additional, Amano, Kana, additional, Morita, Tomoyo, additional, Yurimoto, Hisayoshi, additional, Noguchi, Takaaki, additional, Okazaki, Ryuji, additional, Yabuta, Hikaru, additional, Naraoka, Hiroshi, additional, Sakamoto, Kanako, additional, Tachibana, Shogo, additional, Watanabe, Seiichiro, additional, and Tsuda, Yuichi, additional

Published
2022
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16. Calibration and performances of the MicrOmega instrument for the characterization of asteroid Ryugu returned samples

Author

Riu, Lucie, primary, Pilorget, Cédric, additional, Hamm, Vincent, additional, Bibring, Jean-Pierre, additional, Lantz, Cateline, additional, Loizeau, Damien, additional, Brunetto, Rosario, additional, Carter, John, additional, Lequertier, Guillaume, additional, Lourit, Lionel, additional, Okada, Tatsuaki, additional, Yogata, Kasumi, additional, Hatakeda, Kentaro, additional, Nakato, Aiko, additional, and Yada, Toru, additional

Published
2022
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17. Multiscale correlated analysis of the Aguas Zarcas CM chondrite

Author

Dionnet, Zélia, primary, Aléon‐Toppani, Alice, additional, Brunetto, Rosario, additional, Rubino, Stefano, additional, Suttle, Martin D., additional, Lantz, Cateline, additional, Avdellidou, Chrysa, additional, Baklouti, Donia, additional, Borondics, Ferenc, additional, Djouadi, Zahia, additional, Greco, Francesco, additional, Héripré, Eva, additional, Nakamura, Tomoki, additional, Rotundi, Alessandra, additional, and Scheel, Mario, additional

Published
2022
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19. Comparison of space weathering spectral changes induced by solar wind and micrometeoroid impacts using ion- and femtosecond-laser-irradiated olivine and pyroxene

Author

Chrbolková, Kateřina, primary, Brunetto, Rosario, additional, Ďurech, Josef, additional, Kohout, Tomáš, additional, Mizohata, Kenichiro, additional, Malý, Petr, additional, Dědič, Václav, additional, Lantz, Cateline, additional, Penttilä, Antti, additional, Trojánek, František, additional, and Maturilli, Alessandro, additional

Published
2021
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20. Hayabusa2 Returned Samples: First Results From the MicrOmega Investigation Within the ISAS Curation Facility

Author

Riu, Lucie, primary, Brunetto, Rosario, additional, Carter, John, additional, Gondet, Brigitte, additional, Hamm, Vincent, additional, Hatakeda, Kentaro, additional, Langevin, Yves, additional, Lantz, Cateline, additional, Le Pivert-Jolivet, Tania, additional, Loizeau, Damien, additional, Nakatoh, Aiko, additional, Okada, Tatsuaki, additional, Pilorget, Cédric, additional, Poulet, François, additional, Usui, Tomohiro, additional, Yada, Toru, additional, Yogata, Kasumi, additional, Moussi-Soffys, Aurélie, additional, and Bibring, Jean-Pierre, additional

Published
2021
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21. Planetary Terrestrial Analogues Library (PTAL): online database platform and spectroscopic tools

Author

Veneranda, Marco, primary, Saiz, Jesus, additional, Lopez-Reyes, Guillermo, additional, Sanz-Arranz, Aurelio, additional, Manrique, Jose Antonio, additional, Medina, Jesus, additional, Loizeau, Damien, additional, Lantz, Cateline, additional, Poulet, Francois, additional, Cousin, Agnes, additional, Krzesińska, Agata M., additional, Dypvik, Henning, additional, Werner, Stephanie C., additional, and Rull, Fernando, additional

Published
2021
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22. Ion- and laser-weathered spectra: How (dis)similar are they?

Author

Chrbolková, Kateřina, primary, Brunetto, Rosario, additional, Ďurech, Josef, additional, Kohout, Tomáš, additional, Mizohata, Kenichiro, additional, Malý, Petr, additional, Dědič, Václav, additional, Lantz, Cateline, additional, Penttilä, Antti, additional, Trojánek, František, additional, and Maturilli, Alessandro, additional

Published
2021
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23. The Role of Hydrated Minerals and Space Weathering Products in the Bluing of Carbonaceous Asteroids

Author

Trang, David, primary, Thompson, Michelle S., additional, Clark, Beth E., additional, Kaplan, Hannah H., additional, Zou, Xiao-Duan, additional, Li, Jian-Yang, additional, Ferrone, Salvatore M., additional, Hamilton, Victoria E., additional, Simon, Amy A., additional, Reuter, Dennis C., additional, Keller, Lindsay P., additional, Barucci, M. Antonietta, additional, Campins, Humberto, additional, Lantz, Cateline, additional, DellaGiustina, Daniella N., additional, Ballouz, Ronald-Louis, additional, Jawin, Erica R., additional, Connolly, Harold C., additional, Walsh, Kevin J., additional, and Lauretta, Dante S., additional

Published
2021
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24. ExoMars raman laser spectrometer: A tool for the potential recognition of wet-target craters on mars

Author

Veneranda, Marco, López-Reyes, G., Manrique, José Antonio, Medina, Jesús, Torre-Fernández, Imanol ,, Castro, Kepa, Lantz, Cateline, Poulet, François, Dypvik, Henning, Werner, Stephanie C., Veneranda, Marco, López-Reyes, G., Manrique, José Antonio, Medina, Jesús, Torre-Fernández, Imanol ,, Castro, Kepa, Lantz, Cateline, Poulet, François, Dypvik, Henning, and Werner, Stephanie C.

Abstract

In the present work, near-infrared, laser-induced breakdown spectroscopy, Raman, and X-ray diffractometer techniques have been complementarily used to carry out a comprehensive characterization of a terrestrial analogue selected from the Chesapeake Bay impact structure (CBIS). The obtained data clearly highlight the key role of Raman spectroscopy in the detection of minor and trace compounds, through which inferences about geological processes occurred in the CBIS can be extrapolated. Beside the use of commercial systems, further Raman analyses were performed by the Raman laser spectrometer (RLS) ExoMars Simulator. This instrument represents the most reliable tool to effectively predict the scientific capabilities of the ExoMars/Raman system that will be deployed on Mars in 2021. By emulating the analytical procedures and operational restrictions established by the ExoMars mission rover design, it was proved that the RLS ExoMars Simulator can detect the amorphization of quartz, which constitutes an analytical clue of the impact origin of craters. Beside amorphized minerals, the detection of barite and siderite, compounds crystallizing under hydrothermal conditions, helps indirectly to confirm the presence of water in impact targets. Furthermore, the RLS ExoMars Simulator capability of performing smart molecular mappings was successfully evaluated.

Published
2020

26. ExoMars Raman Laser Spectrometer: A Tool to Semiquantify the Serpentinization Degree of Olivine-Rich Rocks on Mars

Author

Veneranda, Marco, primary, Lopez-Reyes, Guillermo, additional, Pascual Sanchez, Elena, additional, Krzesińska, Agata M., additional, Manrique-Martinez, Jose Antonio, additional, Sanz-Arranz, Aurelio, additional, Lantz, Cateline, additional, Lalla, Emmanuel, additional, Moral, Andoni, additional, Medina, Jesús, additional, Poulet, Francois, additional, Dypvik, Henning, additional, Werner, Stephanie C., additional, Vago, Jorge L., additional, and Rull, Fernando, additional

Published
2021
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29. Hyperspectral imaging of carbonaceous chondrites in view of the Hayabusa2 sample return

Author

Brunetto, Rosario, primary, Aléon-Toppani, Alice, additional, Dionnet, Zélia, additional, Rubino, Stefano, additional, Arribard, Yann, additional, Baklouti, Donia, additional, Borondics, Ferenc, additional, Djouadi, Zahia, additional, Lantz, Cateline, additional, Matsumoto, Megumi, additional, Matsuoka, Moe, additional, Nakamura, Tomoki, additional, Amano, Kana, additional, Takahashi, Miki, additional, Troadec, David, additional, and Tsuchiyama, Akira, additional

Published
2020
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33. Visible–near infrared spectral indices for mapping mineralogy and chemistry with OSIRIS‐REx

Author

Kaplan, Hannah H., primary, Hamilton, Victoria E., additional, Howell, Ellen S., additional, Scott Anderson, F., additional, Barrucci, M. Antonella, additional, Brucato, John, additional, Burbine, Thomas H., additional, Clark, Beth E., additional, Cloutis, Ed A., additional, Connolly, Harold C., additional, Dotto, Elisabetta, additional, Emery, Joshua P., additional, Fornasier, Sonia, additional, Lantz, Cateline, additional, Lim, Lucy F., additional, Merlin, Frederic, additional, Praet, Alice, additional, Reuter, Dennis C., additional, Sandford, Scott A., additional, Simon, Amy A., additional, Takir, Driss, additional, and Lauretta, Dante S., additional

Published
2020
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34. ExoMars Raman Laser Spectrometer: A Tool for the Potential Recognition of Wet-Target Craters on Mars

Author

Veneranda, Marco, primary, Lopez-Reyes, Guillermo, additional, Manrique, José Antonio, additional, Medina, Jesus, additional, Ruiz-Galende, Patricia, additional, Torre-Fdez, Imanol, additional, Castro, Kepa, additional, Lantz, Cateline, additional, Poulet, François, additional, Dypvik, Henning, additional, Werner, Stephanie C., additional, and Rull, Fernando, additional

Published
2020
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36. More ion irradiated meteorites: expanding the space weathering view of dark asteroids

Author

Lantz, Cateline, Brunetto, Rosario, Baklouti, Donia, Nakamura, Tomoki, Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Brunetto, Rosario

Subjects
[SDU] Sciences of the Universe [physics], [SDU]Sciences of the Universe [physics]
Abstract

International audience; We performed ion irradiation of dark meteorites as a simulation of slow solar wind irradiation of dark asteroid surfaces. As a follow-up of the reflectance spectroscopy study of several ion-irradiated carbonaceous chondrites from different petrologic groups (CO, CV, CM, CI, C2), we performed new ion irradiation of CK, CR, and CM meteorites to test composition effects. The results of these experiments are used to support current sample return missions Hayabusa2/JAXA and OSIRIS-REx/NASA.

Published
2019

37. Irradiation of meteorites: decoding space weathering on low albedo asteroids

Author

Lantz, Cateline, Brunetto, Rosario, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Brunetto, Rosario

Subjects
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], [SDU.ASTR.EP] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]
Abstract

International audience; In this presentation I will review the role of irradiation laboratory experiments on the understanding of space weathering and the interpretation of VNIR reflectance spectra of small bodies.

Published
2018

38. Spectroscopic study of olivine-bearing rocks and its relevance to the ExoMars rover mission

Author

Veneranda, Marco, primary, Manrique-Martinez, Jose Antonio, additional, Lopez-Reyes, Guillermo, additional, Medina, Jesús, additional, Torre-Fdez, Imanol, additional, Castro, Kepa, additional, Madariaga, Juan Manuel, additional, Lantz, Cateline, additional, Poulet, Francois, additional, Krzesińska, Agata M., additional, Hellevang, Helge, additional, Werner, Stephanie C., additional, and Rull, Fernando, additional

Published
2019
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39. Étude des processus d'altération aqueuse et de maturation des surfaces par 'space weathering' des astéroïdes primitifs en support aux futures missions spatiales de retour d'échantillons

Author

Lantz, Cateline, Lantz, Cateline, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris Diderot, Antonella Barucci, and Sonia Fornasier

Subjects
asteroids, analyse de données, spectroscopy, laboratory experiments, astéroïdes, data analysis, Planetology, meteorites, spectroscopie, Planétologie, [SDU] Sciences of the Universe [physics], expériences de laboratoire, observations, [SDU]Sciences of the Universe [physics]
Abstract

Surface alteration processes on airless small bodies prevent the identification of primitive materials preserved since Solar System formation. Understanding how these modifications act on asteroids and change their spectra will provide a step toward better compositional interpretation of telescopic observations. This knowledge will also be valuable support for the forthcoming space missions planned to collect sample of primitive objects and bring it back to Earth. These asteroids are especially studied because they are thought to contain organic compounds and some water, key elements for life on Earth. Unaltered samples returns are crucial to precisely characterize these asteroids.Throughout my doctoral work, I studied these surface alterations -- also known as space weathering -- in order to propose a model of primitive surface maturation. I analysed spectral data from observations in the visible and near infrared ranges and find new evidence of space weathering on some specific primitive asteroid populations. Comparisons with meteorites are also made as asteroids are their parent bodies. A second approach performed in my work was to simulate space weathering effects in the laboratory using ion irradiation on meteorite samples. Such a global study on several carbonaceous chondrites had never been performed before. I show that the spectral changes are a function of initial composition. Space weathering studies must be pursued to decipher the physical, chemical and mineralogical changes it causes. I also investigated the aqueous alteration process among primitive Main Belt asteroids. Visible spectra of 600 objects were analysed to look for the absorption band indicating that liquid water had previously been present in this region of the Solar System. This study is the biggest statistical database for the aqueousalteration in the visible range. Together with recent dynamical models, these results allow us to understand the location of various compounds that originated at the time of planetary system formation and the evolution since that time., Les processus d'altération de surface des petits corps sans atmosphère empêchent l'identification des matériaux constituant ces témoins privilégiés des premières phases de la formation du Système solaire. Si comprendre comment ces modifications agissent sur les astéroïdes et transforment les spectres électromagnétiques de la lumière qu'ils envoient permettra de mieux interpréter les observations télescopiques, un autre enjeu actuellement est d'apporter un support d'exploitation des données des missions spatiales à destination d'objets primitifs. Ces astéroïdes en particulier intéressent la communauté scientifique puisqu'ils sont supposés contenir des matériaux carbonés et de l'eau, deux éléments essentiels à l'émergence de la vie sur Terre. Des retours d'échantillons sont précieux pour une caractérisation précise de ce type de corps, et la nécessité d'obtenir l'échantillon le moins altéré possible évidente.Durant cette thèse, j'ai étudié ces mécanismes de maturation -- appelés "space weathering" ou altération spatiale -- afin de proposer un modèle d'évolution des surfaces dites primitives. J'ai analysé des données spectroscopiques issues d'observations télescopiques dans les domaines de longueurs d'onde visible et proche infrarouge afin de mettre en évidence les effets de l'altération spatiale sur certaines populations d'astéroïdes primitifs. Des comparaisons avec les météorites, dont les astéroïdes sont les corps parents, sont également menées. Une seconde approche de la thématique a été faite via un travail expérimental pour simuler l'altération spatiale en laboratoire par irradiation ionique sur des échantillons météoritiques. Une étude complète sur plusieurs chondrites carbonées n'avait jusqu'alors jamais été proposée, et je montre que la réponse spectrale de telles surfaces aux irradiations est dépendante de la composition initiale. Les recherches sur l'altération spatiale doivent être poursuivies pour déchiffrer les modifications physiques, chimiques et minéralogiques qui s'en suivent.Un autre mécanisme dit d'altération aqueuse a été investigué parmi les astéroïdes primitifs de la Ceinture principale. Avec un total de 600 objets, cette étude constitue la plus importante base statistique de détection des indices spectroscopiques dans le domaine de longueurs d'onde visible de la présence d'eau liquide dans cette région du Système solaire. Combinés aux récents modèles dynamiques, ces résultats permettent de comprendre la répartition des divers éléments présents lors de la formation de notre système planétaire et quelle a été son évolution.

Published
2015

40. Space weathering of primitive bodies: From laboratory measurements to space missions

Author

Lantz, Cateline, Brunetto, Rosario, Barucci, Maria Antonella, Fornasier, Sonia, Clark, Beth E., Binzel, Richard P., Fulchignoni, Marcello, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

41. Grain scale heterogeneities in Ryugu samples as observed by MicrOmega: a key to understand aqueous alteration and space weathering.

Author

Le Pivert-Jolivet, Tania, Brunetto, Rosario, Pilorget, Cedric, Bibring, Jean-Pierre, Aiko Nakato, Loizeau, Damien, Riu, Lucie, Hamm, Vincent, Lantz, Cateline, Kentaro Hatakeda, Kasumi Yogata, Baklouti, Donia, Toru Yada, Tatsuaki Okada, and Tomohiro Usui

Subjects
SPACE environment, WEATHERING, OPTICAL microscopes, SURFACES (Technology), PHYLLOSILICATES, GRAIN
Abstract

Introduction: Hayabusa2 is the first space mission to study and collect samples from a C-type asteroid. In December 2020, the spacecraft brought back to Earth ~5.4g of materials from the surface of asteroid (162173) Ryugu. The samples were collected from two different sites TD1 and TD2 [1] at the surface of the asteroid. The second touchdown was performed near the artificial crater created by the small carry-on impactor [2] to collect both surface and subsurface materials. The samples were delivered to JAXA (Japan Aerospace eXploration Agency) Extraterrestrial Curation Center for preliminary analyses. The samples were extracted from chambers A and C, corresponding to TD1 and TD2 respectively, weighed and analyzed in a controlled N2 environment by an optical microscope, a FTIR, and MicrOmega, a near-infrared (0.99-3.65 µm) hyperspectral microscope. MicrOmega acquires images of 256x250 pixels with a spatial resolution of 22.5 µm. The total field of view covers ~5.7x5.7mm² [3]. The first spectral characterization of the bulk samples within the Curation Facility [4,5] showed that the grains are extremely dark and exhibit absorption features at 2.72 µm, 3.1 µm and 3.4 µm due to phyllosilicates, NH-rich compounds and organics and/or carbonates respectively. The 2.72 µm feature was also observed on the asteroid's surface by the NIRS3 spectrometer [6]. In addition to the bulk samples, observations of individual grains, extracted from the bulks, were performed with MicrOmega. We investigate here the variations of the 2.72µm feature at the individual grain scale, on 177 grains from chambers A and C. Methods: In order to extract an average spectrum of each individual grain (typical size 1-7 mm), we developed a novel procedure using thermal emission maps measured by MicrOmega. First, each grain was isolated from the rest of the field of view (the sample holder) thanks to their difference in terms of thermal emission. Then the spectra of every pixels within the grain were average to obtain a mean spectrum of each grain. The final spectrum was obtained by averaging observations obtained at different azimuth angles to avoid potential photometric biases. Two spectral parameters were calculated to characterize the position and the depth of the 2.72 µm OH feature. The position was calculated using a gaussian fit on the 2.72 µm band and the band depth was calculated between the minimum of reflectance and a linear continuum. Results: The position of the 2.72 µm OH feature is consistent with the position found in CI chondrites and highly aqueously altered CM chondrites [7]. Contrary to the bulk spectra where the 2.72µm OH feature was very similar between chambers A and C [5], the position of the OH varies within an interval of 10 nm at individual grain scale. Importantly, our results show that the distribution of the 2.72 µm band position varies between the two chambers: there is an excess of grains from chamber A with a position at longer wavelength. Another difference is that the band depth of the grains varies with a larger interval in chamber A than in chamber C. The OH feature position can change with the Mg/Fe ratio in phyllosilicates [8]. Moreover, space weathering experiments on carbonaceous chondrites [9] have shown that the band position was shifted towards longer wavelength after irradiation. A shift has been observed on Ryugu's surface spectra, between the artificial crater and the surrounding surface [10]. Our results suggest that space weathering processes are probably recorded in the returned samples, in agreement with results presented by the Initial Analysis team [11]. We will discuss the spectral differences between the collected grains, in particular between chambers A and C, and what information they carry about the composition of the phyllosilicates and the space weathering processes affecting Ryugu's surface materials. [ABSTRACT FROM AUTHOR]

Published
2022

42. Coordinated spectral analysis of H2020/PTAL mineral samples.

Author

Lantz, Cateline, Poulet, François, Loizeau, Damien, Veneranda, Marco, Dypvik, Henning, Perez, Fernando Rull, Pilorget, Cédric, and Werner, Stéphanie C.

Subjects
*MINERAL analysis, *NEAR infrared spectroscopy, *RAMAN spectroscopy, *SPECTROMETERS, *NATURAL products
Abstract

The PTAL project aims at building and exploiting a database, the Planetary Terrestrial Analogues Library, in order to characterize the mineralogical evolution of terrestrial bodies, starting with Mars. A total of 94 natural Earth rocks have been collected on selected locations around the world to get martian analogues and to prepare future in situ investigations using NIR, LIBS and Raman techniques.Each sample is first characterized with XRD and thin section observation (Oslo University) to obtain the main rock classification and the lithological description, including natural alteration products. Then, NIR spectroscopy (Paris-Sud University) is used according to two techniques. We have a FTNIR spectrometer that mimics spectral characterization of IRS/Mars2020 (a point spectrometer) and a spare model of MicrOmega/ExoMars (a hyper spectral microscope) for better comparison with both missions instrumentation. The point spectrometer is used on powder, while MicrOmega is very useful to highlight mineralogical heterogeneity of bulk samples. Raman spectroscopy (Valladolid University) is then performed and offers a unique complementarity to the NIR as some compounds are better detected with Raman. It also gives information on the crystalline/amorphous state. The selected strategy involves the complementary use of two different analytical systems. The overall molecular characterization of powdered samples is first performed through a Raman spectrometer assembled in the laboratory (laser excitation emitting at 633 nm). Further analysis is then carried out with the so-called RLS ExoMars simulator (emitting at 532 nm). The final step in the multiple spectroscopic analysis loop is the LIBS (Toulouse University) using a spare model of ChemCam/Curiosity that provides the elemental composition.These techniques are similar to the instruments on board current and forthcoming martian missions. We perform coordinated analysis between all techniques including compositional comparison; examples will be presented during the conference. This is a new scientific field not yet explored at such a large and systematic scale. Such combined analysis — with techniques that have never been brought together to Mars surface yet — should give the opportunity to prepare and improve ExoMars/ESA and Mars2020/NASA observations.Acknowledgments: This work has received funding from the European Union's Horizon 2020 Research and Innovation Programme, under Grant Agreement no 687302. [ABSTRACT FROM AUTHOR]

Published
2019

44. Multiscale correlated analysis of the Aguas Zarcas CM chondrite

Author

Dionnet, Zélia, Aléon‐Toppani, Alice, Brunetto, Rosario, Rubino, Stefano, Suttle, Martin D., Lantz, Cateline, Avdellidou, Chrysa, Baklouti, Donia, Borondics, Ferenc, Djouadi, Zahia, Greco, Francesco, Héripré, Eva, Nakamura, Tomoki, Rotundi, Alessandra, Scheel, Mario, Dionnet, Zélia, Aléon‐Toppani, Alice, Brunetto, Rosario, Rubino, Stefano, Suttle, Martin D., Lantz, Cateline, Avdellidou, Chrysa, Baklouti, Donia, Borondics, Ferenc, Djouadi, Zahia, Greco, Francesco, Héripré, Eva, Nakamura, Tomoki, Rotundi, Alessandra, and Scheel, Mario

Abstract

In this paper, we report the results of a campaign of measurements on four fragments of the CM Aguas Zarcas (AZ) meteorite, combining X‐ray computed tomography analysis and Fourier‐transform infrared (FT‐IR) spectroscopy. We estimated a petrologic type for our sampled CM lithology using the two independent techniques, and obtained a type CM2.5, in agreement with previous estimations. By comparing the Si‐O 10‐µm signature of the AZ average FT‐IR spectra with other well‐studied CMs, we place AZ in the context of aqueous alteration of CM parent bodies. Morphological characterization reveals that AZ has heterogeneous distribution of pores and a global porosity of 4.5 ± 0.5 vol%. We show that chondrules have a porosity of 6.3 ± 1 vol%. This larger porosity could be inherited due to various processes such as temperature variation during the chondrule formation and shocks or dissolution during aqueous alteration. Finally, we observed a correlation between 3D distributions of organic matter and mineral at micrometric scales, revealing a link between the abundance of organic matter and the presence of hydrated minerals. This supports the idea that aqueous alteration in AZ’s parent body played a major role in the evolution of the organic matter.

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