The problem of the origin of nearly parabolic comets

Details The problem of the origin of nearly parabolic comets The problem of the origin of nearly parabolic comets

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991kfnt....7...21r&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 7, Nov.-Dec. 1991, p. 21-29. In Russian.

Astronomy and Astrophysics

Astronomy

Comet Nuclei, Correlation Coefficients, Orbital Elements, Astronomical Catalogs, Orbital Mechanics

Scientific paper

The correlation E(p/a exp -1) between the parameters p and the inverse values of the semimajor axes a exp -1 of nearly parabolic comets is investigated. It is found that this correlation is negative for elliptical orbits with p greater than 2.7 AU (correlation coefficient K = -0.94) and that it is positive for orbits with p less than 1.7 AU (K = +0.99). It is shown that all the nuances of that correlation may be equally explained within the framework of two hypotheses of the origin of nearly parabolic comets: the eruption of comets by massive trans-Plutonian planets, and the formation of comets in situ.

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