Results 21 to 30 of about 8,064,980 (248)
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
doaj +1 more source
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
doaj +1 more source
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 ...
openaire +1 more source
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
doaj +1 more source
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
openaire +1 more source
On the dynamics of short-period comets [PDF]
, 1987 Численно изучена эволюция орбит наблюдавшихся короткопериодических комет на промежутках времени до 50 000 лет. Рассмотрены особенности их либрационного и стохастического движения.
Емельяненко, В.В.
core +1 more source
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
doaj +1 more source
Exploreneos. Viii. Dormant short-period comets in the near-Earth asteroid population [PDF]
, 2015 We perform a search for dormant comets, asteroidal objects of cometary origin, in the near-Earth asteroid (NEA) population based on dynamical and physical considerations.
Mommert, M. +14 more
core +1 more source
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
openaire +2 more sources
Integrated Biomarker Assessment of Bifenthrin, Chlorpyrifos and Endosulfan Toxicity in Indigenous Carps (Catla catla and Labeo rohita): Oxidative Stress, Genotoxicity and Nuclear Alterations. [PDF]
Vet Med SciCombined exposure to bifenthrin–chlorpyrifos and bifenthrin–endosulfan mixtures induced oxidative stress, genotoxicity and nuclear abnormalities in Catla catla and Labeo rohita. Antioxidant and DNA damage biomarkers provide sensitive tools for assessing pesticide‐related ecological risks in aquatic environments. ABSTRACT Background The extensive use of
Naz H +10 more
europepmc +2 more sources