Description du projet
La recherche sur les roches magnétisées pourrait révéler des indices sur l’histoire ancienne des planètes telluriques
Les roches magnétisées sont susceptibles de répondre à des questions fondamentales concernant la formation et l’évolution des planètes telluriques. Le déchiffrage des données magnétiques des roches repose d’une part sur l’acquisition, le traitement et l’interprétation des mesures du champ magnétique acquises par une sonde spatiale, et d’autre part sur les mesures effectuées en laboratoire sur des échantillons planétaires. Financé dans le cadre du programme Actions Marie Skłodowska-Curie, le projet PETRA prévoit de développer une nouvelle technique mathématique permettant aux scientifiques d’extraire des informations relatives à la magnétisation à partir des données orbitales et des mesures de laboratoire. En outre, l’équipe suivra l’évolution du champ magnétique des planètes telluriques, révélant ainsi des informations importantes sur l’état thermique des planètes, leur composition, leur atmosphère, leur climat et leur caractère habitable au cours de plusieurs périodes géologiques.
Objectif
Magnetized rocks hold answers to fundamental questions about the formation and evolution of terrestrial planets. However, retrieving this information is far from trivial. Currently, there are two approaches to tackle this. One is through processing of spacecraft magnetic field measurements and the other one is through laboratory measurements of planetary samples. The first aim of this project is to develop a novel mathematical technique that will allow the extraction of magnetization information both from spacecraft measurements and laboratory samples. The second aim is to apply this methodology to constrain the evolution of the terrestrial and Martian magnetic fields over geological times. This has important implications concerning the planets’ evolution of their thermal state, composition, atmosphere, climate and ultimately of their habitability over geological times. This project will strengthen the position of Europe in space research as it will increase the benefits of space missions such as the ongoing ESA mission Swarm and the future sequence of Mars sample return missions, for which a statement of intent to collaborate has been recently signed between ESA and NASA. Moreover, this project will allow the transfer of expertise concerning the use of a SQUID magnetic microscope, from the US (MIT, the Partner Organization) to Europe (IPGP, the Beneficiary). This laboratory instrument, currently being installed at IPGP, is the first one to be installed in a European lab. This project will allow me to complement my experience in the study of the lithospheric magnetic fields of Earth and Mars using satellite measurements with training in ultra-high sensitivity laboratory paleomagnetic measurements. My solid background in mathematics, signal processing and planetary magnetism, the world-leading expertise of the supervisors and the research excellence of the host institutes will enable a successful outcome for the project and a broad dissemination of its results.
Champ scientifique
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringastronautical engineeringspacecraft
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsignal processing
- natural sciencesphysical sciencesopticsmicroscopy
- natural sciencesphysical sciencesastronomyplanetary sciencesplanets
- natural sciencesmathematics
Mots‑clés
Programme(s)
Régime de financement
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinateur
75238 Paris
France