Results 1 to 10 of about 21,905 (255)
ASTEROID SECULAR DYNAMICS: CERES’ FINGERPRINT IDENTIFIED [PDF]
The Astrophysical Journal, 2015 Here we report on the significant role of a so far overlooked dynamical aspect, namely a secular resonance between the dwarf planet Ceres and other asteroids.
Bojan Novaković +3 more
core +5 more sources
An Earth Encounter as the Cause of Chaotic Dynamics in Binary Asteroid (35107) 1991VH [PDF]
The Planetary Science JournalAmong binary asteroids, (35107) 1991VH stands out as unique given the likely chaotic rotation within its secondary component. The source of this excited dynamical state is unknown. In this work, we demonstrate that a past close encounter with Earth could
Alex J. Meyer +6 more
doaj +2 more sources
Morphology of ejecta features from the impact on asteroid Dimorphos [PDF]
Nature CommunicationsHypervelocity impacts play a significant role in the evolution of asteroids, causing material to be ejected and partially reaccreted. However, the dynamics and evolution of ejected material in a binary asteroid system have never been observed directly ...
Fabio Ferrari +32 more
doaj +2 more sources
Mineral Extraction Scenarios From an Asteroid via Optimization Considering Rotational Dynamics
IEEE AccessThis study examines how removing surface materials affects the rotational dynamics of an asteroid to design efficient asteroid mining plans. The simulations solve Euler’s equations and track variations in the inertia tensor, angular momentum, and ...
Seyedmahdiar Ziaolhagh +1 more
doaj +2 more sources
Machine learning applied to asteroid dynamics [PDF]
Celestial Mechanics and Dynamical Astronomy, 2022 Machine Learning (ML) is the branch of computer science that studies computer algorithms that can learn from data. It is mainly divided into supervised learning, where the computer is presented with examples of entries, and the goal is to learn a general rule that maps inputs to outputs, and unsupervised learning, where no label is provided to the ...
V. Carruba +4 more
openalex +4 more sources
Dynamics of rotationally fissioned asteroids: Source of observed small asteroid systems [PDF]
Icarus, 2011 We present a model of near-Earth asteroid (NEA) rotational fission and ensuing dynamics that describes the creation of synchronous binaries and all other observed NEA systems including: doubly synchronous binaries, high- e binaries, ternary systems, and contact binaries. Our model only presupposes the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect,
Seth A. Jacobson, Daniel J. Scheeres
openalex +4 more sources
A Numerical Research on a New Type of Asteroid Flexible Probe
IEEE Access, 2021 The asteroid landing detection is of great scientific and economic value. The traditional landing rigid probe is prone to rebound and escape due to the asteroid’s weak gravity and rugged terrain.
Weifeng Yan, Hexi Baoyin
doaj +1 more source
Asteroids and Their Mathematical Methods
Mathematics, 2022 In this paper, the basic classification of asteroids and the history and current situation of asteroid exploration are introduced. Furthermore, some recent research progress on the orbital dynamics of asteroids, including models of the gravitational ...
Yu Jiang +4 more
doaj +1 more source
Mathematics, 2023 We have considered here a novel particular model for dynamics of a non-rigid asteroid rotation, assuming the added mass model instead of the concept of Viscoelastic Oblate Rotators to describe the physically reasonable response of a ‘rubble pile ...
Sergey Ershkov, Dmytro Leshchenko
doaj +1 more source
The Planetary Science Journal, 2023 The NASA Double Asteroid Redirection Test (DART) spacecraft successfully crashed on Dimorphos, the secondary component of the binary (65803) Didymos system. Following the impact, a large dust cloud was released, and a long-lasting dust tail developed. We
Fernando Moreno +28 more
doaj +1 more source