Episodes of particle ejection from the surface of the active asteroid (101955) Bennu

DS Lauretta, CW Hergenrother, SR Chesley… - Science, 2019 - science.org
INTRODUCTION Active asteroids are small bodies in the Solar System that show ongoing
mass loss, such as the ejection of dust, which may be caused by large impacts, volatile …

Energy dissipation in synchronous binary asteroids

AJ Meyer, DJ Scheeres, HF Agrusa, G Noiset… - Icarus, 2023 - Elsevier
Synchronous binary asteroids can experience libration about their tidally-locked equilibrium,
which will result in energy dissipation. This is an important topic to the Asteroid Impact and …

[HTML][HTML] Boulder sizes and shapes on asteroids: a comparative study of Eros, Itokawa and Ryugu

T Michikami, A Hagermann - Icarus, 2021 - Elsevier
In order to understand the geological evolution of asteroids Eros, Itokawa and Ryugu and
their collisional history, previous studies investigated boulder size distributions on their …

Rotation-induced granular motion on the secondary component of binary asteroids: Application to the DART impact on Dimorphos

HF Agrusa, R Ballouz, AJ Meyer, E Tasev… - Astronomy & …, 2022 - aanda.org
Context. NASA's Double Asteroid Redirection Test (DART) mission will kinetically impact
Dimorphos, the secondary component of the Didymos binary asteroid system, which will …

Shaking and Tumbling: Short-and Long-timescale Mechanisms for Resurfacing of Near-Earth Asteroid Surfaces from Planetary Tides and Predictions for the 2029 …

RL Ballouz, H Agrusa, OS Barnouin… - The Planetary …, 2024 - iopscience.iop.org
Spectral characterization of near-Earth asteroids (NEAs) has revealed a continuum of space-
weathered states for the surfaces of S-complex NEAs, with Q-class NEAs, an S-complex …

[HTML][HTML] Bennu regolith mobilized by TAGSAM: Expectations for the OSIRIS-REx sample collection event and application to understanding naturally ejected particles

EB Bierhaus, JT Songer, BC Clark, RD Dubisher… - Icarus, 2021 - Elsevier
Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith
Explorer (OSIRIS-REx) mission will collect material from the asteroid Bennu and return it to …

Particle ejection contributions to the rotational acceleration and orbit evolution of asteroid (101955) Bennu

DJ Scheeres, JW McMahon, DN Brack… - Journal of …, 2020 - Wiley Online Library
This paper explores the implications of the observed Bennu particle ejection events for that
asteroid's spin rate and orbit evolution, which could complicate interpretation of the …

Regolith flow on top-shaped asteroids

D Banik, K Gaurav, I Sharma - Proceedings of the …, 2022 - royalsocietypublishing.org
We develop a continuum framework of regolith flow on asteroids. We focus on top-shaped
asteroids that may be taken as consisting of regolith lying on a solid core. Depth-averaging …

Active mass ejection for asteroid manipulation and deflection

DN Brack, JW McMahon - Journal of Spacecraft and Rockets, 2020 - arc.aiaa.org
The dynamics of asteroid deflection and manipulation using mass ejection are examined.
First, a linearized small angular velocity and inertia tensor deviation model for close-to …

The Dynamical Evolution of Perturbed Near-Earth Binary Asteroids

AJ Meyer - 2024 - search.proquest.com
Near-Earth binary asteroids are typically comprised of a kilometer-sized rapidly rotating
primary asteroid, orbited by a smaller secondary asteroid usually rotating synchronously …