Monte Carlo simulations of the Oort comet cloud

Details Monte Carlo simulations of the Oort comet cloud Monte Carlo simulations of the Oort comet cloud

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...88..104h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 88, Nov. 1990, p. 104-121.

Computer Science

50

Comets, Computerized Simulation, Monte Carlo Method, Oort Cloud, Dynamic Characteristics, Milky Way Galaxy, Perturbation Theory, Solar System

Scientific paper

The present Monte Carlo simulation of the Oort comet's evolution over between 10,000 and 40,000 AU encompasses both Galactic tidal field and passing star perturbations. Over 40 million comets are found to be generated for 250 million years, while the figure for 4.5 billion years is 1.5 million comets. Over the age of the solar system, it is projected that half the members of the comet cloud are lost beyond about 20,000 AU. On the assumption that the distribution density of comets beyond r = 3000 AU is r exp -3.5, for a cloud of 10 to the 11th comets beyond 3000 AU, the background flux of new comets within 2 AU of the sun will be about 0.2 comets/yr.

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