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Master Thesis

Reconstruction of high-resolution 3D models using MPCD technique to study local changes on the surface of comet 67P

Abstract : The Rosetta mission escorted comet 67P/CG from August 2014 to September 2016, allowing to follow the onset of activity during its perihelion passage. The spacecraft was equipped with a high-resolution camera (OSIRIS/NAC) which allowed to monitor the morphological changes occurring around perihelion. One of these changes was the motion of very large boulders (> 50 m) which moved by several tens of meters. In this internship, I modelled the motion of a boulder assuming that it is controlled by the recoil force produced by the outgassing of an icy patch. I showed that very small icy areas (< 10 cm2) are able to explain the observed motion.
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Master Thesis
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Raghav Awasty. Reconstruction of high-resolution 3D models using MPCD technique to study local changes on the surface of comet 67P. Astrophysics [astro-ph]. 2019. ⟨dumas-02946542⟩

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