Results 21 to 30 of about 7,767,873 (255)
Application of the regularization method to differential equations of comets' motion
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009 Regularization method for differential equation of comets' motion is used. Numerical integration of the equation of motion of 10 short-period comets during the period of 1800 to 2204 with the use of osculating elements of the large planets is done.
A. F. Zausaev, L. A. Solov'ev
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FUV Observations of the Inner Coma of 46P/Wirtanen
The Planetary Science Journal, 2021 Far-ultraviolet observations of comets yield information about the energetic processes that dissociate the sublimated gases from their primitive surfaces.
John W. Noonan +8 more
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Monitoring Cometary Activity of 60P/Tsuchinshan During Its 2018–2019 Apparition
The Astrophysical Journal, 2023 Comet 60P/Tsuchinshan is a Jupiter family comet. Since the discovery of 60P/Tsuchinshan, little research for cometary activity has been conducted on this comet, though it has returned to perihelion several times.
Jianchun Shi +6 more
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The transition between long period comets, short period comets and meteoroid streams [PDF]
International Astronomical Union Colloquium, 1985 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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The Gateway from Centaurs to Jupiter-family Comets: Thermal and Dynamical Evolution
The Astrophysical Journal, 2023 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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Stochastic capture of short-period comets [PDF]
Monthly Notices of the Royal Astronomical Society, 1989 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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The Astronomical Journal, 2023 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]
Monthly Notices of the Royal Astronomical Society, 2007 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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CLATHRATE HYDRATES FORMATION IN SHORT-PERIOD COMETS
The Astrophysical Journal, 2009 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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Periodontology 2000, EarlyView., 2023 Abstract Periodontitis is a long‐term condition affecting up to half of the population globally and causing significant impacts on life quality. Successful management depends on taking life‐long ownership of the condition by those affected. There is a wealth of research to inform on management options. However, most of the research has been designed by
Ian Needleman +3 more
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