Mechanical properties of rubble pile asteroids (Dimorphos, Itokawa, Ryugu, and Bennu) through surface boulder morphological analysis

CQ Robin, A Duchene, N Murdoch, JB Vincent… - Nature …, 2024 - nature.com
Planetary defense efforts rely on estimates of the mechanical properties of asteroids, which
are difficult to constrain accurately from Earth. The mechanical properties of asteroid …

Shapes, structures, and evolution of small bodies

Y Zhang, P Michel - Astrodynamics, 2021 - Springer
Small bodies are among the best tracers of our Solar System's history. A large number of
space missions to small bodies (past and future) offer a unique opportunity to use these …

Inferring interiors and structural history of top-shaped asteroids from external properties of asteroid (101955) Bennu

Y Zhang, P Michel, OS Barnouin, JH Roberts… - Nature …, 2022 - nature.com
Asteroid interiors play a key role in our understanding of asteroid formation and evolution.
As no direct interior probing has been done yet, characterisation of asteroids' interiors relies …

[HTML][HTML] Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos

N Trógolo, AC Bagatin, F Moreno, PG Benavidez - Icarus, 2023 - Elsevier
An increasing number of Near Earth Asteroids (NEAs) in the range of a few hundred metres
to a few kilometres in size have relatively high spin rates, from less than 4 h, down to∼ 2.2 h …

Rebound stabilization for an asteroid lander by flexible plate design

R Feng, K Yoshida, J Li, H Baoyin - Aerospace Science and Technology, 2022 - Elsevier
Landing on small bodies like asteroids encounters great rebound uncertainties, which
threatens the surface exploration and operation. This paper explores a potential solution for …

Numerical study on low-velocity impact between asteroid lander and deformable regolith

X Zeng, Z Li, Q Gan, C Circi - Journal of Guidance, Control, and …, 2022 - arc.aiaa.org
Investigating the impact process between the hopping lander and the regolith surfaces is of
great significance for the in situ asteroid explorations. The high-efficiency description of the …

[HTML][HTML] Interior of top-shaped asteroids with cohesionless surface

F Ferrari, P Tanga - Icarus, 2022 - Elsevier
Multiple sources of evidence suggest that asteroids ranging from hundreds meters to few
kilometers in size are rubble piles, ie gravitational aggregates of loosely consolidated …

Asteroid capture dynamics and control using a large-scale flexible net

Y Zhang, R Feng, Y Yu, J Liu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Asteroids are scientific windows for understanding the universe while having enormous
economic value. Instead of merely bringing back a small sample, capturing an asteroid into …

Critical spin periods of sub-km-sized cohesive rubble-pile asteroids: dependences on material parameters

S Hu, DC Richardson, Y Zhang… - Monthly Notices of the …, 2021 - academic.oup.com
In this work, we employ a soft-sphere discrete element method with a cohesion
implementation to model the dynamical process of sub-km-sized cohesive rubble piles …

The crater-induced YORP effect

WH Zhou, Y Zhang, X Yan, P Michel - Astronomy & Astrophysics, 2022 - aanda.org
Context. The Yarkovsky–O'Keefe–Radzievskii–Paddack (YORP) effect plays an important
role in the rotational properties and evolution of asteroids. While the YORP effect induced by …