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8 results on '"Tesson, Pierre-Antoine"'

2. GMAP – European Mapping efforts for Geologic Mapping of Planetary bodies

Author

Nass, Andrea, primary, Massironi, Matteo, additional, Rossi, Angelo Pio, additional, Penasa, Luca, additional, Pozzobon, Riccardo, additional, Brandt, Carlos, additional, Nodjoumi, Giacomo, additional, Pondrelli, Monica, additional, Pantaloni, Marco, additional, Galluzzi, Vallentina, additional, Altieri, Francesca, additional, Frigeri, Alessandro, additional, Carli, Christian, additional, Giacomini, Lorenza, additional, Mège, Daniel, additional, Gurgurewicz, Joanna, additional, Tesson, Pierre-Antoine, additional, Marinangeli, Lucia, additional, van der Bogert, Carolyn, additional, and Poehler, Claudia, additional

Published
2021
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3. Probing the Atmospheric Cl Isotopic Ratio on Mars: Implications for Planetary Evolution and Atmospheric Chemistry

Author

Belgian Science Policy Office, European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), UK Space Agency, National Aeronautics and Space Administration (US), Fonds de la Recherche Scientifique (Fédération Wallonie-Bruxelles), Agenzia Spaziale Italiana, European Space Agency, Liuzzi, Giuliano, Villanueva, Geronimo L., Viscardy, Sebastien, Mège, Daniel, Crismani, Matteo M. J., Aoki, Shohei, Gurgurewicz, Joanna, Tesson, Pierre-Antoine, Mumma, Michael J., Smith, Michael D., Faggi, Sara, Kofman, Vincent, Knutsen, Elise W., Daerden, Frank, Neary, Lori, Schmidt, Frédéric, Trompet, Loïc., Erwin, Justin T., Robert, Séverine, Thomas, Ian R., Ristic, Bojan, Bellucci, Giancarlo, López-Moreno, José Juan, Patel, Manish R., Vandaele, Ann Carine, Belgian Science Policy Office, European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), UK Space Agency, National Aeronautics and Space Administration (US), Fonds de la Recherche Scientifique (Fédération Wallonie-Bruxelles), Agenzia Spaziale Italiana, European Space Agency, Liuzzi, Giuliano, Villanueva, Geronimo L., Viscardy, Sebastien, Mège, Daniel, Crismani, Matteo M. J., Aoki, Shohei, Gurgurewicz, Joanna, Tesson, Pierre-Antoine, Mumma, Michael J., Smith, Michael D., Faggi, Sara, Kofman, Vincent, Knutsen, Elise W., Daerden, Frank, Neary, Lori, Schmidt, Frédéric, Trompet, Loïc., Erwin, Justin T., Robert, Séverine, Thomas, Ian R., Ristic, Bojan, Bellucci, Giancarlo, López-Moreno, José Juan, Patel, Manish R., and Vandaele, Ann Carine

Abstract

Following the recent detection of HCl in the atmosphere of Mars by ExoMars/Trace Gas Orbiter, we present here the first measurement of the 37Cl/35Cl isotopic ratio in the Martian atmosphere using a set of Nadir Occultation for MArs Discovery (NOMAD) observations. We determine an isotopic anomaly of −6 ± 78‰ compared to Earth standard, consistent with the −51‰–−1‰ measured on Mars’ surface by Curiosity. The measured isotopic ratio is also consistent with surface measurements, and suggests that Cl reservoirs may have undergone limited processing since formation in the Solar Nebula. The examination of possible sources and sinks of HCl shows only limited pathways to short-term efficient Cl fractionation and many plausible reservoirs of “light” Cl. © 2021. American Geophysical Union.

Published
2021

4. Probing the Atmospheric Cl Isotopic Ratio on Mars: Implications for Planetary Evolution and Atmospheric Chemistry

Author

Liuzzi, Giuliano, primary, Villanueva, Geronimo L., additional, Viscardy, Sebastien, additional, Mège, Daniel, additional, Crismani, Matteo M. J., additional, Aoki, Shohei, additional, Gurgurewicz, Joanna, additional, Tesson, Pierre‐Antoine, additional, Mumma, Michael J., additional, Smith, Michael D., additional, Faggi, Sara, additional, Kofman, Vincent, additional, Knutsen, Elise W., additional, Daerden, Frank, additional, Neary, Lori, additional, Schmidt, Frédéric, additional, Trompet, Loïc, additional, Erwin, Justin T., additional, Robert, Séverine, additional, Thomas, Ian R., additional, Ristic, Bojan, additional, Bellucci, Giancarlo, additional, Lopez‐Moreno, Jóse Juan, additional, Patel, Manish R., additional, and Vandaele, Ann Carine, additional

Published
2021
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7. Recent rockfalls on Mars

Author

Tesson, Pierre-Antoine, Conway, Susan J., Mangold, Nicolas, Lewis, Stephen R., ciazela, jakub, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), School of Physical Sciences [Milton Keynes], Faculty of Science, Technology, Engineering and Mathematics [Milton Keynes], and The Open University [Milton Keynes] (OU)-The Open University [Milton Keynes] (OU)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology
Abstract

International audience; We study rocks falling from exposed outcrops of bedrock in martian impact craters. Those rockfalls have left trails on the slope over which they have bounced and/or rolled. Craters at ~20°N/S have notably higher frequencies on their equator-facing slopes compared to other slope-orientations. Our interpretation is that thermal stress is playing a more important role than ice-presence in rock breakdown on modern Mars.

Published
2018

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