The Galactic disk tidal field and the nonrandom distribution of observed Oort cloud comets

Details The Galactic disk tidal field and the nonrandom distribution of observed Oort cloud comets The Galactic disk tidal field and the nonrandom distribution of observed Oort cloud comets

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...82..389m&link_type=abstract

Icarus (ISSN 0019-1035), vol. 82, Dec. 1989, p. 389-401.

Physics

40

Comets, Disk Galaxies, Oort Cloud, Orbit Perturbation, Tides, Analytic Functions, Monte Carlo Method, Orbital Elements

Scientific paper

If the perturbation arising in Galactic-Oort cometary cloud interactions is limited to the secularly averaged first-order disk tidal term, not only do analytic solutions for the temporal evolution of orbital elements become possible, but Monte Carlo techniques emerge as a basis for estimation of orbital element distributions for comets that become observable. It is presently shown that the nonrandomness detected in the galactic latitudes of perihelia is due to the physical effect of tidal perturbation, rather than to mere observational selection effects.

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