Master Thesis Online
Hypervelocity Impact Modelling. Impact Craters and Gravitation on the Didymos Asteroid's Moonlet Dimorphos
Bau, Sébastien 
Promotor(s) :
Karatekin, Ozgur
;
Grodent, Denis
Date of defense : 7-Sep-2023/8-Sep-2023 • Permalink : http://hdl.handle.net/2268.2/18704
MasterThesis_BAU-SebastienAV_Aug2023.pdfDetails
| Title : | Hypervelocity Impact Modelling. Impact Craters and Gravitation on the Didymos Asteroid's Moonlet Dimorphos |
| Author : | Bau, Sébastien
|
| Date of defense : | 7-Sep-2023/8-Sep-2023 |
| Advisor(s) : | Karatekin, Ozgur
Grodent, Denis
|
| Committee's member(s) : | Senel, Cem Berk
Rauw, Grégor
|
| Language : | English |
| Number of pages : | 65 |
| Keywords : | [en] iSALE [en] DART [en] Hera |
| Discipline(s) : | Physical, chemical, mathematical & earth Sciences > Space science, astronomy & astrophysics |
| Name of the research project : | Hypervelocity impact modelling of the solar system bodies |
| Institution(s) : | Université de Liège, Liège, Belgique |
| Degree: | Master en sciences spatiales, à finalité spécialisée |
| Faculty: | Master thesis of the Faculté des Sciences |
Abstract
[en] After the DART mission in September 2022 and the upcoming ESA Hera mission, it is important to study the target of the impact, Dimorphos. With 2D hypervelocity impact simulations using the iSALE shock physics hydro-code we simulated 9 different cases with varying asteroid cohesion and porosity. The results were used to create 3D models of the crater on Dimorphos and used to compute the gravitational potential of the impacted body using a polyhedron gravity model. The data was then imported into the Small Body Mapping Tool as a colour map. This shows the feasibility of combining 2D impact simulations to 3D gravity computations of a small body.
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