Results 11 to 20 of about 1,091 (163)
Dynamics of the Hungaria asteroids [PDF]
Icarus, 2010 To try to understand the dynamical and collisional evolution of the Hungaria asteroids we have built a large catalog of accurate synthetic proper elements. Using the distribution of the Hungaria, in the spaces of proper elements and of proper frequencies, we can study the dynamical boundaries and the internal structure of the Hungaria region, both ...
MILANI COMPARETTI, ANDREA +3 more
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Machine learning applied to asteroid dynamics
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
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On The Critical Phenomena in The Dynamics of Asteroids [PDF]
International Astronomical Union Colloquium, 1999 AbstractTwo statistical effects in the long-term chaotic asteroidal dynamics are considered, namely the power-law character of the dependence of recurrence times on local Lyapunov times and the power-law decay in the tails of the recurrence distributions. The dependences in both cases are shaped by effects of anomalous transport, due to the presence of
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On the dynamics of Trojan asteroids [PDF]
Symposium - International Astronomical Union, 1996 The author's theory of Trojan asteroids (Érdi, 1988) is developed further. The motion of the Trojans is considered in the framework of the three-dimensional elliptic restricted three-body problem of the Sun-Jupiter-asteroid system including also the secular changes of Jupiter's orbital eccentricity and the apsidal motion of Jupiter's elliptic orbit. An
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Dynamical lifetimes of asteroids in retrograde orbits [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Accepted 2017 March 2.
Kankiewicz, Paweł +1 more
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The Dynamics of the Trojan Asteroids [PDF]
Symposium - International Astronomical Union, 1994 The state of the art in the dynamics of the Trojan asteroids has progressed rapidly, since it has been possible to perform numerical integrations of many orbits for millions of years. Accurate proper elements are now computed by the synthetic method, that is from the output of a numerical integration; their stability, at least for time spans of a few ...
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Dynamical evolution of the Cybele asteroids [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 The Cybele region, located between the 2J:-1A and 5J:-3A mean-motion resonances, is adjacent and exterior to the asteroid main belt. An increasing density of three-body resonances makes the region between the Cybele and Hilda populations dynamically unstable, so that the Cybele zone could be considered the last outpost of an extended main belt.
Carruba, V +3 more
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An Efficient Numerical Approach to Modeling the Effects of Particle Shape on Rubble-pile Dynamics
The Planetary Science Journal, 2023 We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components.
Julian C. Marohnic +4 more
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MathematicsThe main motivation of this research is the semi-analytical exploration of the dynamics of an asteroid that is attacked while approaching a planet (with an inelastic collision of the projectile normally to the surface of the asteroid occurring just ...
Sergey Ershkov
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Origin and Dynamical Evolution of the Asteroid Belt
, 2022 The asteroid belt was dynamically shaped during and after planet formation. Despite representing a broad ring of stable orbits, the belt contains less than one one-thousandth of an Earth mass. The asteroid orbits are dynamically excited with a wide range in eccentricity and inclination and their compositions are diverse, with a general trend toward dry
Raymond, Sean N., Nesvorny, David
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