Patrick PINET, Ph.D., CNRS senior scientist at IRAP (Observatoire Midi-Pyrénées, Toulouse, France). He has a background in planetary sciences, geophysics and remote sensing. His research interest is the Moon and Mars using optical/spectral data for the compositional characterization and physical properties of the surface, in relation with experimental (spectral and photometric) data. He has been involved in the Clementine, Lunar Prospector and SMART-1 lunar missions. He is currently Co-I on Mars-Express, science collaborator on MSL and Mars-2020. He is now addressing the study of the physical properties of regolith simulants and natural geological powdered and rocky surfaces.
Content Abstract: We document lunar surface compositional variations from diagnostic absorption features across the visible and near-infrared wavelengths due to electronic transitions of Fe2+ in the crystal structure. Based on an advanced MGM (Modified Gaussian Model) deconvolution approach, the behaviour of mineral absorptions near 1 μm is revisited. This improved modelling is then applied to orbital observations made with Chandrayaan-1 Moon Mineralogy Mapper (M3) over Copernicus and Eratosthenes craters, and on in situ observations performed by Chang'e-4 rover in Von Kármán crater, within South-Pole Aitken basin.
May 31st 03:00 PM
Location:
D1 No.4 Meeting Room
