Results 131 to 140 of about 19,992 (163)
Fjord oceanographic dynamics provide refuge for critically endangered <i>Pycnopodia helianthoides</i>. [PDF]
Proc Biol SciGehman AM +11 more
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Mechanistic phylodynamic models do not provide conclusive evidence that non-avian dinosaurs were in decline before their final extinction. [PDF]
Camb Prism ExtinctAllen BJ +4 more
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Alternative climatic steady states near the Permian-Triassic Boundary. [PDF]
Sci RepRagon C +3 more
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Astrovirology and terrestrial life survival. [PDF]
BioinformationShapshak P +3 more
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Icarus, 1990
Abstract The orbital evolution of binary asteroids is controlled mainly by the perturbing attraction of the Sun, although over the long run the smaller effect brought about by Jupiter may cause secular change. We determine from theoretical considerations scaled on numerical simulations the conditions of stability over the age of the solar system of ...
B. Chauvineau, F. Mignard
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Abstract The orbital evolution of binary asteroids is controlled mainly by the perturbing attraction of the Sun, although over the long run the smaller effect brought about by Jupiter may cause secular change. We determine from theoretical considerations scaled on numerical simulations the conditions of stability over the age of the solar system of ...
B. Chauvineau, F. Mignard
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Dynamics of the Asteroids [PDF]
, 1982 The main features of asteroidal dynamics are demonstrated in Figures 1–4 which show the frequency distributions for perihelion distances, aphelion distances, simimajor axes and inclinations of the numbered asteroids. The large majority of the known asteroids is situated in a belt between the orbits of Mars and Jupiter.
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Advances in Space Research, 1985
Abstract It is a major goal of research in the field of asteroidal dynamics to relate the distribution of orbital elements to the evolutionary history of the asteroidal belt. The distribution of orbital elements shows characteristics which are presumably of cosmogonic significance.
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Abstract It is a major goal of research in the field of asteroidal dynamics to relate the distribution of orbital elements to the evolutionary history of the asteroidal belt. The distribution of orbital elements shows characteristics which are presumably of cosmogonic significance.
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Dynamical dispersal of primordial asteroid families
Icarus, 2016Abstract Many asteroid families are identified and well characterized all over the main asteroid belt. Interestingly, however, none of them are older than 4 Gyr. Many mechanisms have been proposed to disperse such old primordial asteroid families that presumably have existed, but only very few have really worked. Here we present a plausible mechanism
Brasil, P. +5 more
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