Results 21 to 30 of about 2,437 (254)
The Gateway from Centaurs to Jupiter-family Comets: Thermal and Dynamical Evolution
It was recently proposed that there exists a “gateway” in the orbital parameter space through which Centaurs transition to Jupiter-family comets (JFCs).
Aurélie Guilbert-Lepoutre +3 more
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IT is now generally accepted that the periodic comets of our system did not originate in it, but are bodies captured from outer space by one of the planets, the parabolic orbits in which they approached the system being transformed into elliptical ones.
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The transition between long period comets, short period comets and meteoroid streams [PDF]
It has long been realised that Jovian perturbation is the dominant cause of the transition of long period comets (Period > 200 yr) into short period ones (P < 200 yr). When the differences in the detectability of comets in the two groups are taken into account it is clear that the present day flux of long period comets is sufficient to provide ...
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Stochastic capture of short-period comets [PDF]
Un modele d'orbite de comete a courte periode, incluant les perturbations dues aux planetes, est developpe. La capture de ces cometes est analysee en faisant varier l'inclinaison et le perihelie.
C. R. Stagg, M. E. Bailey
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We present a comprehensive analysis of the chemical composition of the Jupiter-family comet and potential spacecraft target 46P/Wirtanen, in the near-IR wavelength range.
Younas Khan +13 more
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The distant activity of Short Period Comets★- II. [PDF]
A surprisingly large number of short-period comets have been observed with significant activity (a coma and even a well-developed dust tail) at heliocentric distances greater than 3 au, where the water sublimation rate is low and thus the sublimation of other volatiles, such as for example CO, could drive the presence of a coma.
E. Mazzotta Epifani +5 more
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Aims. The existence of asteroid complexes produced by the disruption of these comets suggests that evolved comets could also produce high-strength materials able to survive as meteorites.
Llorca Piqué, Jordi
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CLATHRATE HYDRATES FORMATION IN SHORT-PERIOD COMETS
The initial composition of current models of cometary nuclei is only based on two forms of ice: crystalline ice for long-period comets and amorphous ice for short-period comets. A third form of ice, i.e., clathrate hydrate, could exist within the short-period cometary nuclei, but the area of formation of this crystalline structure in these objects has ...
Marboeuf, Ulysse +3 more
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Cylindrical Manifolds and Tube Dynamics in the Restricted Three-Body Problem [PDF]
Within the phase space of the planar circular restricted three-body problem, stable and unstable manifolds of periodic orbits with a S x R (cylindrical) geometry are shown to exist.
Ross, Shane David
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Pits on Jupiter-family Comets and the Age of Cometary Surfaces
Large and deep depressions, also known as pits, are observed at the surface of all Jupiter-family comets (JFCs) imaged by spacecraft missions. They offer the opportunity to glimpse the subsurface characteristics of comet nuclei and study the complex ...
Aurélie Guilbert-Lepoutre +6 more
doaj +1 more source

