Stochastic capture of short-period comets

Details Stochastic capture of short-period comets Stochastic capture of short-period comets

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.241..507s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 241, Dec. 1, 1989, p. 507-541. Research supported by SE

Astronomy and Astrophysics

Astronomy

52

Comets, Oort Cloud, Orbit Perturbation, Stochastic Processes, Capture Effect, Earth Orbits, Molecular Clouds, Planetary Evolution

Scientific paper

The capture of short-period comets from nearly parabolic orbits is studied for initial orbits with a wide range of perihelia and inclinations. The conventional picture of capture by a 'diffusive' process for comets with perihelia less than about 9 AU is confirmed. Long-period comets with initial perihelia greater than 9 AU require more revolutions before eventual capture. For these long-period comets, the capture process may be thought of in terms of the classical 'stochastic' capture mechanism described by Newton (1893) and Russell (1920).

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