Results 171 to 180 of about 18,734 (209)

Physical study of outer belt asteroids

Advances in Space Research, 1991
Abstract Located in the proximity of Jovian resonances, the outer belt asteroids are kept from interacting with other asteroids and are likely to represent a population of primitive bodies. The systematic investigation of the physical properties of these objects and the subsequent understanding of their nature and origin, will have a direct ...
Gonano, M., di Martino, M., Mottola, S., Neukum, G.   +3 more
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Resonant structure of the outer asteroid belt

Celestial Mechanics, 1984
An analysis of ordered and chaotic regions of motion in the outer asteroid belt has shown that once the eccentricity of Jupiter is introduced the chaotic regions of the circular model are quite easily depleted. This suggests that also objects in neighbouring regions must be strongly perturbed.
MILANI COMPARETTI, ANDREA, NOBILI, ANNA MARIA   +1 more
exaly   +2 more sources

A Population of Comets in the Main Asteroid Belt

Science, 2006
Comets are icy bodies that sublimate and become active when close to the Sun. They are believed to originate in two cold reservoirs beyond the orbit of Neptune: the Kuiper Belt (equilibrium temperatures of ∼40 kelvin) and the Oort Cloud (∼10 kelvin).
Henry H, Hsieh, David, Jewitt
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Asteroid Proper Elements and the Dynamical Structure of the Asteroid Main Belt

Icarus, 1994
Abstract We have computed proper elements for 12,573 asteroids, including all the ones with orbits accurate enough to be useful for family identification. This was done with an upgraded version of our iterative analytical algorithm, resulting in significantly improved accuracy for most asteroids in the low to moderate inclination and eccentricity ...
MILANI COMPARETTI, ANDREA, KNEZEVIC, ZORAN   +1 more
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Chaos in the Asteroid Belt

1996
In 1772, Johann Titius, a German astronomer, came to Johann Bode at the Berlin Observatory with a simple mathematical relationship he had discovered that appeared to give the orbits of the planets. He pointed out that if you start with the series 0, 3, 6, 12, 24,..., add four to each, then divide by 10 you get the distance to each of the planets in ...
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Collisions in the asteroid belt

Journal of Geophysical Research, 1967
Generalization of Oepik theory of planetary bodies collision to include case where orbits of both colliding bodies are ...
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Formation of the Kirkwood Gaps in the Asteroid Belt

Celestial Mechanics, 1984
In the framework of the restricted circular and planar 3-body problem the 2/1, 3/1 and 5/2 resonances of the asteroids belt are explored. The adiabatic invariant theory proposes that the gaps emerge during the slow dissipation of the solar nebula.
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Structure of the Asteroid Belt for Small Members

Celestial Mechanics & Dynamical Astronomy, 1993
Widely accepted recognition of the belt asteroids is that they are part of a proto-planet that could not grow up to the planetary size probably due to the gravitational perturbations by Jupiter, and asteroids are fragments produced as a result of mutual collisions (Wetherill, 1989).
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Out Here on the Asteroid Belt

Annals of Emergency Medicine, 2022
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Mass distribution in the asteroid belt

Earth, Moon, and Planets, 1992
The dependence of the cumulative number of numbered asteroids (up to 3720) on their absolute magnitude is investigated. The differential mass index k is derived from these relations for fainter asteroids. A steeper slope (2.2 < k < 2.4) is found in the four most populous asteroid familes (Flora, Koronis, Eos and Themis) and a flatter slope (1.3 < k < 1.
openaire   +1 more source