Detail publikace
Macroscale Roughness Reveals the Complex History of Asteroids Didymos and Dimorphos
VINCENT, J. KOHOUT, T. KAŠPÁREK, T.
Originální název
Macroscale Roughness Reveals the Complex History of Asteroids Didymos and Dimorphos
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Morphological mapping, asteroid, topographic roughness, entropy, Didymos, Dimorphos
Autoři
VINCENT, J.; KOHOUT, T.; KAŠPÁREK, T.
Vydáno
24. 10. 2024
ISSN
2632-3338
Periodikum
The Planetary Science Journal
Ročník
5
Číslo
10
Stát
Spojené státy americké
Strany od
1
Strany do
29
Strany počet
29
URL
BibTex
@article{BUT189528,
author="VINCENT, J. and KOHOUT, T. and KAŠPÁREK, T.",
title="Macroscale Roughness Reveals the Complex History of Asteroids Didymos and Dimorphos",
journal="The Planetary Science Journal",
year="2024",
volume="5",
number="10",
pages="1--29",
doi="10.3847/PSJ/ad7a01",
issn="2632-3338",
url="https://iopscience.iop.org/article/10.3847/PSJ/ad7a01"
}