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Biography


Dr. Patrick Michel is an international expert of asteroids born in the famous village Saint-Tropez in France. He is Director or Research (PhD) at CNRS (French Scientific Research National Center) and leads the team TOP (Theories & Observations in Planetology) of the Lagrange laboratory at the Côte d’Azur Observatory (Nice, France). With more than 160 publications in international peer-review journals, he develops numerical simulations of the impact process between asteroids and of asteroid surface behaviors in conditions that are very different than those on Earth. He is the Principal Investigator (PI) of the investigation team of the space mission Hera, under development at ESA in the Space Safety Program, for launch in 2024 which will contribute to the first test of deflection of a potentially hazardous asteroid with the NASA DART mission by investigating the binary asteroid target and the impact outcome in great details. He is co-Investigator of the two asteroid sample return space missions, Hayabusa2 (JAXA) and OSIRIS-REx (NASA). He is co-PI of the CNES-DLR rover onboard the Phobos sample return MMX mission (JAXA) that will be launched in 2024 and Deputy Lead of the Martian Moons Surface Science Working Group. He is also coordinating the NEO-MAPP project funded by the H2020 program of the European Commission (2020-2023), involving 15 laboratories and industries to study asteroid deflection. He is the lead Editor of the book Asteroids IV (University of Arizona Press, 2015), which reviews asteroid knowledge. He is the President of the Near-Earth Object Working Group of the International Astronomical Union and is a member of the Steering Committee of the International Asteroid Warning Network (IAWN). He was awarded the NASA Silver Achievement Medal, the Carl Sagan Medal by the Division of Planetary Science of the American Astronomical Society for Excellence in Public Communication in Planetary Science, the Prize Paolo Farinella 2013 for his contribution to our understanding of the collisional process, the Prize Young Researcher of the French Society of Astronomy and Astrophysics (SF2A) and the asteroid (7561) Patrickmichel is named after him.

 


Journal articles53 documents

  • R-L Ballouz, K Walsh, P Sánchez, K Holsapple, Patrick Michel, et al.. Modified granular impact force laws for the OSIRIS-REx touchdown on the surface of asteroid (101955) Bennu. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2021, 507 (4), pp.5087-5105. ⟨10.1093/mnras/stab2365⟩. ⟨hal-03384809⟩
  • Naoya Tanabe, Yuichiro Cho, Eri Tatsumi, Tatsuki Ebihara, Koki Yumoto, et al.. Development of image texture analysis technique for boulder distribution measurements: Applications to asteroids Ryugu and Itokawa. Planetary and Space Science, Elsevier, 2021, 204, pp.105249. ⟨10.1016/j.pss.2021.105249⟩. ⟨insu-03381697⟩
  • Andrew Rivkin, Nancy Chabot, Angela Stickle, Cristina Thomas, Derek Richardson, et al.. The Double Asteroid Redirection Test (DART): Planetary Defense Investigations and Requirements. The Planetary Science Journal, IOP Science, 2021, 2 (5), pp.173. ⟨10.3847/PSJ/ac063e⟩. ⟨hal-03384309⟩
  • Chiho Sugimoto, Eri Tatsumi, Yuichiro Cho, Tomokatsu Morota, Rie Honda, et al.. High-resolution observations of bright boulders on asteroid Ryugu: 2. Spectral properties. Icarus, Elsevier, 2021, 369, pp.114591. ⟨10.1016/j.icarus.2021.114591⟩. ⟨hal-03384790⟩
  • Guy Libourel, Clément Ganino, Marco Delbo, Mathieu Niezgoda, Benjamin Rémy, et al.. Network of thermal cracks in meteorites due to temperature variations: new experimental evidence and implications for asteroid surfaces. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2021, 500 (2), pp.1905 - 1920. ⟨10.1093/mnras/staa3183⟩. ⟨hal-03044005⟩
  • J.H. Roberts, O.S. Barnouin, M.G. Daly, K.J. Walsh, M.C. Nolan, et al.. Rotational states and shapes of Ryugu and Bennu: Implications for interior structure and strength. Planetary and Space Science, Elsevier, 2021, 204, pp.105268. ⟨10.1016/j.pss.2021.105268⟩. ⟨hal-03384307⟩
  • Keara Burke, Daniella Dellagiustina, Carina Bennett, Kevin Walsh, Maurizio Pajola, et al.. Particle Size-Frequency Distributions of the OSIRIS-REx Candidate Sample Sites on Asteroid (101955) Bennu. Remote Sensing, MDPI, 2021, 13 (7), pp.1315. ⟨10.3390/rs13071315⟩. ⟨insu-03381690⟩
  • Nicole Gomes Dias, Beltran Nadal Arribas, Paulo Gordo, Tiago Sousa, João Marinho, et al.. LIDAR altimeter conception for HERA spacecraft. Aircraft Engineering and Aerospace Technology, Emerald, 2021, 93 (6), pp.1018-1028. ⟨10.1108/AEAT-12-2020-0300⟩. ⟨insu-03381691⟩
  • Chiho Sugimoto, Eri Tatsumi, Yuichiro Cho, Tomokatsu Morota, Rie Honda, et al.. High-resolution observations of bright boulders on asteroid Ryugu: 1. Size frequency distribution and morphology. Icarus, Elsevier, 2021, 369, pp.114529. ⟨10.1016/j.icarus.2021.114529⟩. ⟨insu-03381694⟩
  • Yun Zhang, Patrick Michel, Derek Richardson, Olivier Barnouin, Harrison Agrusa, et al.. Creep stability of the DART/Hera mission target 65803 Didymos: II. The role of cohesion. Icarus, Elsevier, 2021, 362, pp.114433. ⟨10.1016/j.icarus.2021.114433⟩. ⟨insu-03381684⟩
  • F. Marchis, L. Jorda, Pierre Vernazza, M. Brož, J. Hanuš, et al.. (216) Kleopatra, a low density critically rotating M-type asteroid. Astronomy and Astrophysics - A&A, EDP Sciences, 2021, 653, A57 (25 p.). ⟨10.1051/0004-6361/202140874⟩. ⟨insu-03342489⟩
  • Clara Maurel, Patrick Michel, J. Owen, Richard P. Binzel, M. Bruck Syal, et al.. Simulations of high-velocity impacts on metal in preparation for the Psyche mission. Icarus, Elsevier, 2020, 338, pp.113505. ⟨10.1016/j.icarus.2019.113505⟩. ⟨hal-02432546⟩
  • Patrick Michel, R.-L. Ballouz, Olivier Barnouin, M. Jutzi, K. Walsh, et al.. Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu. Nature Communications, Nature Publishing Group, 2020, 11 (1), ⟨10.1038/s41467-020-16433-z⟩. ⟨hal-02986180⟩
  • Yun Zhang, Patrick Michel. Tidal distortion and disruption of rubble-pile bodies revisited: Soft-sphere discrete element analyses. Astronomy and Astrophysics - A&A, EDP Sciences, 2020, 640, pp.A102. ⟨10.1051/0004-6361/202037856⟩. ⟨hal-02919294⟩
  • D. Dellagiustina, K. Burke, K. Walsh, P. Smith, D. Golish, et al.. Variations in color and reflectance on the surface of asteroid (101955) Bennu. Science, American Association for the Advancement of Science, 2020, pp.eabc3660. ⟨10.1126/science.abc3660⟩. ⟨hal-02986161⟩
  • A. Morbidelli, Marco Delbo, M. Granvik, W.F. Bottke, R. Jedicke, et al.. Debiased albedo distribution for Near Earth Objects. Icarus, Elsevier, 2020, 340, pp.113631. ⟨10.1016/j.icarus.2020.113631⟩. ⟨hal-02986196⟩
  • Cecily Sunday, Naomi Murdoch, Simon Tardivel, Stephen R. Schwartz, Patrick Michel. Validating N-body code CHRONO for granular DEM simulations in reduced-gravity environments. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2020, 498 (1), pp.1062-1079. ⟨10.1093/mnras/staa2454⟩. ⟨hal-02949308⟩
  • Masatoshi Hirabayashi, Ryota Nakano, Eri Tatsumi, Kevin J. Walsh, Olivier Barnouin, et al.. Spin-driven evolution of asteroids' top-shapes at fast and slow spins seen from (101955) Bennu and (162173) Ryugu. Icarus, Elsevier, 2020, 352, pp.113946. ⟨10.1016/j.icarus.2020.113946⟩. ⟨hal-03084677⟩
  • M. Daly, Olivier Barnouin, J. Seabrook, J. Roberts, C. Dickinson, et al.. Hemispherical differences in the shape and topography of asteroid (101955) Bennu. Science Advances , American Association for the Advancement of Science (AAAS), 2020, 6 (41), pp.eabd3649. ⟨10.1126/sciadv.abd3649⟩. ⟨hal-02986166⟩
  • Harrison Agrusa, Derek Richardson, Alex Davis, Eugene Fahnestock, Masatoshi Hirabayashi, et al.. A benchmarking and sensitivity study of the full two-body gravitational dynamics of the DART mission target, binary asteroid 65803 Didymos. Icarus, Elsevier, 2020, 349, pp.113849. ⟨10.1016/j.icarus.2020.113849⟩. ⟨hal-02986184⟩
  • M. Arakawa, T. Saiki, K. Wada, K. Ogawa, T. Kadono, et al.. An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science, American Association for the Advancement of Science, 2020, 368 (6486), pp.67-71. ⟨10.1126/science.aaz1701⟩. ⟨hal-02986191⟩
  • Martin Jutzi, Patrick Michel. Collisional heating and compaction of small bodies: Constraints for their origin and evolution. Icarus, Elsevier, 2020, 350, pp.113867. ⟨10.1016/j.icarus.2020.113867⟩. ⟨hal-02986173⟩
  • D. Scheeres, A. French, P. Tricarico, S. Chesley, Y. Takahashi, et al.. Heterogeneous mass distribution of the rubble-pile asteroid (101955) Bennu. Science Advances , American Association for the Advancement of Science (AAAS), 2020, 6 (41), pp.eabc3350. ⟨10.1126/sciadv.abc3350⟩. ⟨hal-03059238⟩
  • Florian Thuillet, Patrick Michel, Shogo Tachibana, Ronald-L Ballouz, Stephen Schwartz. Numerical modelling of medium-speed impacts on a granular surface in a low-gravity environment application to Hayabusa2 sampling mechanism. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2020, 491 (1), pp.153-177. ⟨10.1093/mnras/stz3010⟩. ⟨hal-02407791⟩
  • Bin Cheng, Yang Yu, Erik Asphaug, Patrick Michel, Derek Richardson, et al.. Reconstructing the formation history of top-shaped asteroids from the surface boulder distribution. Nature Astronomy, Nature Publishing Group, 2020, ⟨10.1038/s41550-020-01226-7⟩. ⟨hal-02986154⟩
  • Angela Stickle, Megan Bruck Syal, Andy F. Cheng, Gareth S. Collins, Thomas Davison, et al.. Benchmarking impact hydrocodes in the strength regime: Implications for modeling deflection by a kinetic impactor. Icarus, Elsevier, 2020, 338, pp.113446. ⟨10.1016/j.icarus.2019.113446⟩. ⟨hal-03084619⟩
  • W. Bottke, A. Moorhead, H. Connolly, C. Hergenrother, J. Molaro, et al.. Meteoroid Impacts as a Source of Bennu's Particle Ejection Events. Journal of Geophysical Research. Planets, Wiley-Blackwell, 2020, 125 (8), ⟨10.1029/2019JE006282⟩. ⟨hal-02986169⟩
  • G Dudziński, E Podlewska-Gaca, P Bartczak, S Benseguane, M Ferrais, et al.. Volume uncertainty of (7) Iris shape models from disc-resolved images. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2020, 499 (3), pp.4545-4560. ⟨10.1093/mnras/staa3153⟩. ⟨hal-02988321⟩
  • M. Barucci, P. Hasselmann, A. Praet, M. Fulchignoni, J. Deshapriya, et al.. OSIRIS-REx spectral analysis of (101955) Bennu by multivariate statistics. Astronomy and Astrophysics - A&A, EDP Sciences, 2020, 637, pp.L4. ⟨10.1051/0004-6361/202038144⟩. ⟨hal-02871198⟩
  • W. Bottke, D. Vokrouhlický, R.-L. Ballouz, Olivier Barnouin, H. Connolly, et al.. Interpreting the Cratering Histories of Bennu, Ryugu, and Other Spacecraft-explored Asteroids. The Astronomical Journal, American Astronomical Society, 2020, 160 (1), pp.14. ⟨10.3847/1538-3881/ab88d3⟩. ⟨hal-02986182⟩
  • Matthias Grott, Jens Biele, Patrick Michel, Seiji Sugita, Stefan Schröder, et al.. Macroporosity and Grain Density of Rubble Pile Asteroid (162173) Ryugu. Journal of Geophysical Research. Planets, Wiley-Blackwell, 2020, 125 (12), ⟨10.1029/2020JE006519⟩. ⟨hal-03108946⟩
  • E. Tatsumi, C. Sugimoto, L. Riu, S. Sugita, T. Nakamura, et al.. Collisional history of Ryugu’s parent body from bright surface boulders. Nature Astronomy, Nature Publishing Group, 2020, ⟨10.1038/s41550-020-1179-z⟩. ⟨hal-02986187⟩
  • R.T. Daly, E. Bierhaus, Olivier Barnouin, Mike Daly, J. Seabrook, et al.. The Morphometry of Impact Craters on Bennu. Geophysical Research Letters, American Geophysical Union, 2020, 47 (24), ⟨10.1029/2020GL089672⟩. ⟨hal-03085217⟩
  • R.-L Ballouz, K Walsh, Olivier Barnouin, D Dellagiustina, M Al Asad, et al.. Bennu's near-Earth lifetime of 1.75 million years inferred from craters on its boulders. Nature, Nature Publishing Group, 2020, 587, pp.205-209. ⟨10.1038/s41586-020-2846-z⟩. ⟨hal-03080437⟩
  • B. Yang, J. Hanuš, B. Carry, P. Vernazza, M. Brož, et al.. Binary asteroid (31) Euphrosyne: ice-rich and nearly spherical. Astronomy and Astrophysics - A&A, EDP Sciences, 2020, 641, A80 (9p.). ⟨10.1051/0004-6361/202038372⟩. ⟨insu-02941038⟩
  • T. Morota, Seiji Sugita, Y. Cho, Masanori Kanamaru, Eri Tatsumi, et al.. Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution. Science, American Association for the Advancement of Science, 2020, 368 (6491), pp.654-659. ⟨10.1126/science.aaz6306⟩. ⟨hal-03085258⟩
  • Yang Yu, Bin Cheng, Masatoshi Hayabayashi, Patrick Michel, Hexi Baoyin. A finite element method for computational full two-body problem: I. The mutual potential and derivatives over bilinear tetrahedron elements. Celestial Mechanics and Dynamical Astronomy, Springer Verlag, 2019, 131 (11), ⟨10.1007/s10569-019-9930-4⟩. ⟨hal-02986199⟩
  • Martin Jutzi, Patrick Michel, Derek Richardson. Fragment properties from large-scale asteroid collisions: I: Results from SPH/N-body simulations using porous parent bodies and improved material models. Icarus, Elsevier, 2019, 317, pp.215-228. ⟨10.1016/j.icarus.2018.08.006⟩. ⟨hal-02407872⟩
  • S. Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, et al.. The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes. Science, American Association for the Advancement of Science, 2019, pp.eaaw0422. ⟨10.1126/science.aaw0422⟩. ⟨hal-02407829⟩
  • Safoura Tanbakouei, Josep Trigo-Rodríguez, Jordi Sort, Patrick Michel, Jürgen Blum, et al.. Mechanical properties of particles from the surface of asteroid 25143 Itokawa. Astronomy and Astrophysics - A&A, EDP Sciences, 2019, 629, pp.A119. ⟨10.1051/0004-6361/201935380⟩. ⟨hal-02407821⟩
  • Y Yu, Patrick Michel, M. Hirabayashi, D Richardson. The expansion of debris flow shed from the primary of 65803 Didymos. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2019, 484 (1), pp.1057-1071. ⟨10.1093/mnras/sty3515⟩. ⟨hal-02407863⟩
  • D. Lauretta, C. Hergenrother, S. Chesley, J. Léonard, J. Pelgrift, et al.. Episodes of particle ejection from the surface of the active asteroid (101955) Bennu. Science, American Association for the Advancement of Science, 2019, 366 (6470), pp.eaay3544. ⟨10.1126/science.aay3544⟩. ⟨hal-02407783⟩
  • P. Vernazza, L. Jorda, P Ševeček, M. Brož, M. Viikinkoski, et al.. A basin-free spherical shape as an outcome of a giant impact on asteroid Hygiea. Nature Astronomy, Nature Publishing Group, 2019, 4, pp.136-141. ⟨10.1038/s41550-019-0915-8⟩. ⟨hal-02346869⟩
  • Guy Libourel, Akiko Nakamura, Pierre Beck, Sandra Potin, Clément Ganino, et al.. Hypervelocity impacts as a source of deceiving surface signatures on iron-rich asteroids. Science Advances , American Association for the Advancement of Science (AAAS), 2019, 5 (8), pp.eaav3971. ⟨10.1126/sciadv.aav3971⟩. ⟨hal-02283302⟩
  • M. Grott, J. Knollenberg, M. Hamm, K. Ogawa, R. Jaumann, et al.. Low thermal conductivity boulder with high porosity identified on C-type asteroid (162173) Ryugu. Nature Astronomy, Nature Publishing Group, 2019, 3 (11), pp.971-976. ⟨10.1038/s41550-019-0832-x⟩. ⟨hal-02381807⟩
  • R. Jaumann, N. Schmitz, T.-M. Ho, S. Schröder, K. Otto, et al.. Images from the surface of asteroid Ryugu show rocks similar to carbonaceous chondrite meteorites. Science, American Association for the Advancement of Science, 2019, 365 (6455), pp.817-820. ⟨10.1126/science.aaw8627⟩. ⟨hal-02381801⟩
  • S. Watanabe, M. Hirabayashi, N. Hirata, R. Noguchi, Y. Shimaki, et al.. Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu—A spinning top–shaped rubble pile. Science, American Association for the Advancement of Science, 2019, pp.eaav8032. ⟨10.1126/science.aav8032⟩. ⟨hal-02526030⟩
  • Patrick Michel, Michael Kueppers, Holger Sierks, Ian Carnelli, Andy F. Cheng, et al.. European component of the AIDA mission to a binary asteroid: Characterization and interpretation of the impact of the DART mission. Advances in Space Research, Elsevier, 2018, 62 (8), pp.2261-2272. ⟨10.1016/j.asr.2017.12.020⟩. ⟨insu-01667223⟩
  • Matti Viikinkoski, Pierre Vernazza, Josef Hanuš, Hervé Le Coroller, K. Tazhenova, et al.. (16) Psyche: A mesosiderite-like asteroid?. Astronomy and Astrophysics - A&A, EDP Sciences, 2018, 619, pp.L3. ⟨10.1051/0004-6361/201834091⟩. ⟨hal-02118100⟩
  • Mikael Granvik, Alessandro Morbidelli, Robert Jedicke, Bryce Bolin, William Bottke, et al.. Debiased orbit and absolute-magnitude distributions for near-Earth objects. Icarus, Elsevier, 2018, 312, pp.181-207. ⟨10.1016/j.icarus.2018.04.018⟩. ⟨hal-02407887⟩
  • Stephen Schwartz, Patrick Michel, Martin Jutzi, Simone Marchi, Yun Zhang, et al.. Catastrophic disruptions as the origin of bilobate comets. Nature Astronomy, Nature Publishing Group, 2018, ⟨10.1038/s41550-018-0395-2⟩. ⟨hal-01736706⟩
  • Patrick Michel, Andrew Cheng, Michael Küppers, P. Pravec, J. Blum, et al.. Science case for the Asteroid Impact Mission (AIM): A component of the Asteroid Impact & Deflection Assessment (AIDA) Mission. Advances in Space Research, Elsevier, 2016, 57 (12), pp.2529-2547. ⟨10.1016/j.asr.2016.03.031⟩. ⟨insu-01295249⟩
  • Patrick Michel, Marco Delbo. Orbital and thermal evolutions of four potential targets for a sample return space missionto a primitive Near-Earth Asteroid. Icarus, Elsevier, 2010, 209 (2), pp.520. ⟨10.1016/j.icarus.2010.05.013⟩. ⟨hal-00676220⟩

Conference papers7 documents

  • Ronald-Louis Ballouz, Kevin J. Walsh, William F. Bottke, D.N. Dellagiustina, M. Al Asad, et al.. Mini-Craters on (101955) Bennu's Boulders: Deriving the Impact Strength of C-Type Objects. 51st Lunar and Planetary Science Conference, held 16-20 March, 2020 at The Woodlands, Texas, Mar 2020, The Woodlands, United States. ⟨hal-03086064⟩
  • Patrick Michel, Olivier Barnouin, R.-L Ballouz, K Walsh, D Richardson, et al.. DISRUPTION AND REACCUMULATION AS THE POSSIBLE ORIGIN OF RYUGU AND BENNU TOP SHAPES. Lunar and Planetary Science Congress, Mar 2019, The Woodlands (Texas), United States. ⟨hal-02409257⟩
  • Lucas Sardo, Florian Thuillet, Zeqi Zhu, Lauriane Gorce, Rachna Bhoonah, et al.. Pénétration dans un milieu granulaire sous très faible gravité : cas de la sonde Mascot sur l'astéroïde Ryugu. 53ème Congrès du Groupe Français de Rhéologie, Oct 2018, Brest, France. ⟨hal-01977576⟩
  • Lucas Sardo, Florian Thuillet, Zeqi Zhu, Lauriane Gorce, Rachna Bhoonah, et al.. Impact cratering on granular beds under low gravity. 13th World Congress on Computational Mechanics, Jul 2018, New-York City, United States. ⟨hal-01977574⟩
  • Stephen R. Schwartz, Clara Maurel, Ronald-Louis Ballouz, Derek C. Richardson, Patrick Michel, et al.. Vibration-driven segregation of regolith on low-gravity asteroids. Asteroids comets Meteors 2017, 2017, Montevideo, Uruguay. ⟨hal-01730503⟩
  • Olivier Barnouin, J. Biele, I. Carnelli, Valérie Ciarletti, A. Cheng, et al.. The Asteroid Impact and Deflection Assessment (AIDA) mission: Science Proximity Operations. LPSC 2016 47th Lunar and Planetary Science Conference, Mar 2016, The Woodlands, TX, United States. pp.1427. ⟨insu-01282898⟩
  • Mathieu Niezgoda, Benjamin Rémy, Marco Delbo, Patrick Michel, Guy Libourel. Etude de la fracturation de météorites sous l'influence d'un cyclage de température ou vieillissement thermique. Congrès Français de Thermique SFT, Société Française Thermique, May 2013, Gérardmer, France. ⟨hal-01446741⟩

Videos1 document

  • Patrick Michel, Peter Stockinger, Elisabeth de Pablo, Camille Bonnemazou. La politique, le croire et les représentations dans un contexte en mouvement.
    : Entretien avec Patrick Michel (CNRS), réalisé par Peter Stockinger (Inalco).. 2004. ⟨medihal-01982618⟩