A statistical study of the evolution of the orbits of long-period comets
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This article is published in Monthly Notices of the Royal Astronomical Society.The article was published on 1979-07-01 and is currently open access. It has received 41 citations till now.read more
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The dynamical evolution of massive black hole binaries I. Hardening in a fixed stellar background
TL;DR: In this article, the stellar ejection rate and the rates of change of the binary semimajor axis and eccentricity were derived from scattering experiments for the restricted three-body problem, and they were used to study the evolution of binaries in simple models for galactic nuclei, starting soon after the black holes become bound and continuing until the evolution is dominated by the emission of gravitational radiation or until the ejected mass is too large for the galaxy to be considered fixed.
Journal ArticleDOI
The Evolution of Long-Period Comets
Paul Wiegert,Scott Tremaine +1 more
TL;DR: In this article, the authors study the evolution of long-period comets by numerical integration of their orbits, a more realistic dynamical approach than the Monte Carlo and analytic methods previously used to study this problem.
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The Evolution of Long-Period Comets
Paul Wiegert,Scott Tremaine +1 more
TL;DR: In this paper, the authors study the evolution of long-period comets by numerical integration of their orbits, following comets from their origin in the Oort cloud until their final escape or destruction, in a model solar system consisting of the Sun, the four giant planets and the Galactic tide.
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The Origin of Comets
TL;DR: A review of the history of the origin of comets can be found in this article, where the authors discuss the major issues which dominated the cometary debate during the middle part of this century, culminating in Oort's proposal in 1950 that the Solar System is surrounded by a primordial cloud of comet moving in orbits extending nearly half-way to the nearest stars.
Journal ArticleDOI
A theory of terrestrial catastrophism
W. M. Napier,S. V. M. Clube +1 more
TL;DR: In this paper, a mechanism involving the capture of planetesimals as the Sun passes through spiral arms is proposed, where the time sequence of terrestrial catastrophes and other Solar System phenomena is apparently stochastic but with an underlying galactic modulation.