Steady-state injection of short-period comets from the trans-Neptunian cometary belt

Details Steady-state injection of short-period comets from the trans-Neptunian cometary belt Steady-state injection of short-period comets from the trans-Neptunian cometary belt

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...92..185i&link_type=abstract

Icarus (ISSN 0019-1035), vol. 92, Aug. 1991, p. 185-193.

Physics

18

Cometary Atmospheres, Eccentric Orbits, Icy Satellites, Neptune Satellites, Orbit Perturbation, Halley'S Comet, Planetary Evolution, Planetary Orbits, Solar System

Scientific paper

The dynamical perturbation of a system made up of the type of icy planetesimal expected to be present in a trans-Neptunian comet belt, by a few Mars-to-earth-sized planetoids in highly eccentric orbits, is presently examined in view of a 0.002 earth-mass cometary belt lying between the orbit of Neptune and 200 AU. Due to the strong gravitational scattering exerted by the hypothetical planetoids, the number of trans-Neptunian belt comets thus derived can be taken as a lower limit. Lacking such large planetoids, a two-orders-of-magnitude larger population of trans-Neptunian belt comets might exist.

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