Results 61 to 70 of about 157 (99)
Effects of asteroid belt and oblateness on the stability and orbits near triangular Lagrange points
Results in PhysicsThis study investigates the dynamics of an infinitesimal body within the context of the restricted three-body problem, incorporating perturbations arising from the asteroid belt and the oblateness effects of the three bodies.
Wenhui Liu, Fabao Gao, Bao Ma
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Pulsar Timing Noise from Brownian Motion of the Sun
The Astrophysical Journal LettersRecently, pulsar timing arrays (PTAs) reported a signal at nanohertz frequencies consistent with a stochastic gravitational-wave background. Here, I show that the Brownian motion of the Sun as a result of its random gravitational interactions with the ...
Abraham Loeb
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Satellite Formation around the Largest Asteroids
The Astrophysical Journal LettersSatellites around large asteroids are preferentially found among those with the most rapid rotation and elongated shape. The taxonomic statistics are similarly skewed; in total, 13 asteroids larger than 100 km are known to have satellites, but none have ...
Kevin J. Walsh +5 more
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The Planetary Science JournalPrimitive asteroids with low albedos and red slopes in the visible and near-infrared (VNIR) are found in both the main belt and the Jupiter Trojan clouds.
Oriel A. Humes +3 more
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Anomalous Diffusion in the Asteroid Belt
The Astronomical Journal, 2006 This paper presents a new method for the analysis of "diffusion" in Hamiltonian systems, especially in regard to orbital problems. Although the new method resembles another one developed in an earlier paper, it introduces new concepts related to the "diffusive processes" observed in some dynamical systems.
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Size–Frequency Distribution of Terrestrial Leftover Planetesimals and S-complex Implanted Asteroids
The Astrophysical JournalThe isotopic composition of meteorites linked to S-complex asteroids has been used to suggest that these asteroids originated in the terrestrial planet’s region, i.e., within 1.5 au, and later got implanted into the main asteroid belt (MAB).
Rogerio Deienno +5 more
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The Planetary Science JournalCharacterization of near-Earth objects (NEOs) is critical for Earth-impact hazard assessment. Particularly crucial to our physical understanding of NEOs are laboratory spectral measurements of meteorites as they are the best and most widely available ...
David C. Cantillo +6 more
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On the Stochasticity of the Asteroid Belt [PDF]
, 1998 The study of the stochasticity of the asteroid belt requires the analysis of a large number of orbits. We detect the dynamical character of a set of 5 400 asteroids using the Fast Lyapunov Indicator, a method of analysis closely related to the computation of the Lyapunov Characteristic Exponents, but cheaper in computational time.
FROESCHLÉ, C +3 more
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Compositional Structure of the Asteroid Belt [PDF]
Science, 1982 The distribution of compositional types among the asteroids is found to vary systematically with heliocentric distance. Seven distinct peaks in the relative proportion of the compositional types E, R, S, M, F, C, P, and D are found from 1.8 to 5.2 astronomical units.
E. F. Tedesco, J. Gradie
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