Results 21 to 30 of about 8,464 (293)
Dynamics of the charged particles released from a Sun-grazing comet in the solar corona
Earth and Planetary Physics, 2021 The sun-grazing comet C/2011 W3 (Lovejoy) showed a distorted, unconventional tail morphology near its perihelion (1.2Rs). Based on the “Solar Corona and Inner Heliosphere” modeling result of the magnetic field and plasma dynamics in the solar corona, we ...
ChuanPeng Hou +4 more
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The Formation and Dynamical Survival of the Comet Cloud [PDF]
International Astronomical Union Colloquium, 1985 AbstractThe theory of a huge reservoir of comets (the “comet cloud”) extending to almost interstellar distances is analyzed, paying special attention to its dynamical stability, formation process and orbital properties of the incoming cloud comets. The perturbing influence of passing stars and giant molecular clouds is considered.
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Impact Rates in the Outer Solar System
The Planetary Science Journal, 2023 Previous studies of cometary impacts in the outer solar system used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (≲5°) in the Kuiper Belt.
David Nesvorný +4 more
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Cylindrical Manifolds and Tube Dynamics in the Restricted Three-Body Problem [PDF]
, 2004 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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Problems of the dynamics and the origin of comets [PDF]
Astronomical School’s Report, 2000 We consider some problems concerning the dynamics of comets far from the Sun. In this connection an estimate for the different hypotheses of the comet origin is given.
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Journal of Animal Science and Biotechnology, 2022 Background The analysis of chromatin integrity has become an important determinant of sperm quality. In frozen-thawed bovine sperm, neither the sequence of post-thaw injury events nor the dynamics of different types of sperm DNA breaks are well ...
Jordi Ribas-Maynou +6 more
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Remote Sensing, 2019 In this study, satellite radar observations are employed to reveal spatiotemporal changes in ground surface height of peatlands that have, and have not, undergone restoration in Central Kalimantan, Indonesia.
Zhiwei Zhou +3 more
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Effects of the Planar Galactic Tides and Stellar Mass on Comet Cloud Dynamics [PDF]
, 2009 We report the first results of a research program to explore the sensitivity of the orbits of Oort cloud comets to changes in the strength of the Galactic tides in the plane of the disk and also to changes in the mass of the host star.
G. GONZALEZ +2 more
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Frontiers in Physics, 2020 In this work, we present results that simultaneously constrain the dust size distribution, dust-to-gas ratio, fraction of dust re-deposition, and total mass production rates for comet 67P/Churyumov-Gerasimenko.
Raphael Marschall +7 more
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Hale–Bopp: What Makes a Big Comet Different? Coma Dynamics: Observations and Theory [PDF]
, 2000 Comet Hale–Bopp was the largest comet by almost any definition,observed at least since the advent of modern observing techniques. Ina more typical comet both the chemical and dynamical influences ofcollisional processes are limited by the short time a ...
Combi, Michael R.
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