The Formation and Extent of the Solar System Comet Cloud
Abstract
The authors present the results of numerical simulations of the origin and evolution of the solar system comet cloud. They assume that comets formed in the outer planetary region and that their orbits evolved to their current state through planetary perturbations, stellar encounters, and the galactic tide. The evolution is followed using a hybrid integration scheme which directly integrates the regularized equations of motion for cometary orbits with large semimajor axes, while solving an energydiffusion equation for more tightly bound orbits. Stellar encounters are introduced via a Monte Carlo approach using the impulse approximation. The results of the simulations are discussed in detail.
 Publication:

The Astronomical Journal
 Pub Date:
 November 1987
 DOI:
 10.1086/114571
 Bibcode:
 1987AJ.....94.1330D
 Keywords:

 Comets;
 Solar System;
 Stellar Evolution;
 Clouds;
 Equations Of Motion;
 Monte Carlo Method;
 Orbit Perturbation;
 Simulation;
 Solar Orbits;
 COMETS;
 FORMATION;
 SOLAR SYTEM;
 OORT CLOUD;
 ORIGIN;
 SIZE;
 DESCRIPTION;
 NUMERICAL METHODS;
 SIMULATIONS;
 EVOLUTION;
 PARAMETERS;
 PERTURBATIONS;
 INTERACTION;
 DIFFUSION;
 RADIUS;
 TIME SCALE;
 DENSITY;
 ABUNDANCE;
 FLUX;
 CALCULATIONS;
 PROCEDURE;
 DIAGRAMS;
 ECCENTRICITY;
 INCLINATION;
 Astrophysics; Comets;
 COMETS