Results 201 to 210 of about 10,898 (231)

The absence of satellites of asteroids

Icarus, 1987
Abstract A CCD-imaging survey was made for satellites of minor planets at distances of about 0.1 to 7 arcmin from 1 Ceres, 2 Pallas, 4 Vesta, 6 Hebe, 7 Iris, 8 Flora, 15 Eunomia, 29 Amphitrite, 41 Daphne, and 44 Nysa, with cursory inspection of 192 Nausikaa. Satellites larger than 3 km were not found in this work, nor in previous photographic surveys.
T. Gehrels, J.D. Drummond, N.A. Levenson
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Structural integrity of rubble asteroidal satellites

Icarus, 2019
Abstract We investigate the structural integrity of asynchronous, rubble asteroidal satellites, which may or may not be in synchronous motion, by identifying necessary conditions for the structural equilibrium of such objects. Asynchronous motion may occur when the satellite’s rotation rate about its mass center does not match its orbital angular ...
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Meteoroid Impact Detection for Exploration of Asteroids: Small Satellites for Asteroid Characterization

Journal of Spacecraft and Rockets, 2018
The Meteoroid Impact Detection for Exploration of Asteroids concept addresses the challenge of characterizing an asteroid surface using a small satellite with a constellation of free-flying plasma ...
Nicolas Lee, Sigrid Close
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Asteroids with satellites: Analysis of observational data

Solar System Research, 2013
The volume of observational information on asteroids and trans-Neptunians with satellites has significantly increased in recent years. In this paper we study the dependence of asteroid duplicity on the main physical parameters of the primary: the size and rotation rate.
N. M. Gaftonyuk, N. N. Gorkavyi
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Attitude dynamics of satellites orbiting an asteroid

The Journal of the Astronautical Sciences, 2006
Attitude motion of satellites orbiting an asteroid is examined. The highly irregular shape of the asteroids along with their rotational states can lead to very interesting attitude dynamics. As a start, the case of uniform rotation of the asteroid is examined and attention is focused on planar attitude motion (pitch).
Arun K. Misra, Yulia Panchenko
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Collisions and Gravitational Reaccumulation: Forming Asteroid Families and Satellites

Science, 2001
Numerical simulations of the collisional disruption of large asteroids show that although the parent body is totally shattered, subsequent gravitational reaccumulation leads to the formation of an entire family of large and small objects with dynamical properties similar to those of the parent body.
P, Michel, W, Benz, P, Tanga, D C, Richardson   +3 more
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Gravitational Deformation in Shaping Asteroids and Small Satellites

Icarus, 1997
Abstract A variety of techniques have demonstrated that some of the solid bodies of the Solar System have distinct irregular shapes, while the rest have sphere-like equilibrium shapes; a sharp transition exists between the two. Such an abrupt, mass-dependent transition may be explained by the yield strength of material at low temperatures ...
Evgeniy N. Slyuta, Sergey A. Voropaev
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Asteroids' satellites in Gaia astrometric data

It is known to the astronomical community that asteroids with satellites are not uncommon in the Solar System. So far we have more than 500 documented asteroid systems encompassing binaries, pairs and multiples[1]. Yet, amidst this group of objects, several others remain enigmatic due to the challenges in observation and detection with conventional ...
Luana Liberato, Paolo Tanga, David Mary
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Asteroid Impact Satellite Optimization

This paper proposes an optimization algorithm inspired by the physical phenomenon of asteroid impacts on satellites, called the Asteroid Impact Satellite Optimization (AISO). This algorithm simulates the dynamics of asteroid impacts on satellites and incorporates three innovative mechanisms: multi-impact coordination, fragment self-organization, and ...
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Asteroid Satellite Discovery Optimization

The discovery of asteroid-satellite systems not only reveals the formation and evolution mechanisms of small solar system bodies but also provides insights into the optimization of complex systems. This paper proposes a heuristic optimization algorithm based on the principles of asteroid-satellite discovery.
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