Statistics – Computation
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...70..269h&link_type=abstract
Icarus (ISSN 0019-1035), vol. 70, May 1987, p. 269-288. Research supported by the Connaught Fund.
Statistics
Computation
45
Astronomical Models, Celestial Mechanics, Comets, Perturbation, Computational Astrophysics, Gravitational Effects, Periodic Variations, Tides, Comets, Comet Showers, Oort Cloud, Frequency, Intensity, Simulations, Procedure, Models, Computer Methods, Flux, Axes, Monte Carlo Methods, Perturbations, Tidal Effects, Evolution, Calculations, Trajectories, Celestial Mechanics, Production Rate, Time Scale
Scientific paper
The nature of new comets and the frequency and intensity of comet showers are presently studied by means of a simulation in which an ensemble of one million comets is perturbed at random times by the Bahcall-Soneira (1980) Galaxy model's population of main sequence stars and white dwarfs. The time-integrated flux is dominated by the showers for comets whose semimajor axes are less than about 30,000 AU. The inclusion of tidal effects increases the loss rate of comets with semimajor axes between 10,000 and 20,000 AU by a factor of about 4, so that the Galactic tide, rather than individual stellar perturbations, is the dominant Oort cloud evolution-driving mechanism.
Alcock Charles
Heisler James
Tremaine Scott
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