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VINCENT, J. KOHOUT, T. KAŠPÁREK, T.
Original Title
Macro-scale roughness reveals the complex history of asteroids Didymos and Dimorphos
Type
journal article - other
Language
English
Original Abstract
Morphological mapping is a fundamental step in studying the pro- cesses that shaped an asteroid surface. Yet, it is challenging and often requires multiple independent assessments by trained experts. Here, we present fast methods to detect and characterize meaningful ter- rains from the topographic roughness: entropy of information, and local mean surface orientation. We apply our techniques to Didymos and Dimorphos, the target asteroids of NASA's DART mission: first attempt to deflect an asteroid. Our methods reliably identify morpho- logical units at multiple scales. The comparative study reveals various terrain types, signatures of processes that transformed Didymos and Dimorphos. Didymos shows the most heterogeneity and morphology that indicate recent resurfacing events. Dimorphos is comparatively rougher than Didymos, which may result from the formation process of the binary pair and past interaction between the two bodies. Our methods can be readily applied to other bodies and data sets.
Authors
VINCENT, J.; KOHOUT, T.; KAŠPÁREK, T.
Released
10. 9. 2024
ISBN
2632-3338
Pages count
29
URL
https://arxiv.org/pdf/2405.19764
BibTex
@article{BUT189528, author="VINCENT, J. and KOHOUT, T. and KAŠPÁREK, T.", title="Macro-scale roughness reveals the complex history of asteroids Didymos and Dimorphos", year="2024", pages="29", issn="2632-3338", url="https://arxiv.org/pdf/2405.19764" }