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The Solar Motion, the Galaxy and the Aphelia Distribution of Long Period Comets

Published online by Cambridge University Press:  07 August 2017

A. Brunini  and
D.M. Canosa
A. Brunini
Affiliation:
Instituto Astronômico e Geofísico, Universidade de São Paulo, Brasil
D.M. Canosa
Affiliation:
Facultad de Ciencias Astronomicas y Geofisicas Paseo del Bosque s/n 1900 La Plata Argentina

Abstract

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We analyze the incoming direction of 180 long period comets, taken into account the gravitational influence of the planets and the Galaxy as a whole. We have made an improvement of some previous works on the matter, by inclusion of comets observed up to 1989. An asymmetry of aphelia is detected that cannot be explained as due to observational selection. We conclude that the so called Dynamical Friction induced by the solar motion through the interstellar medium could be the proper answer to this observed fact.

Type
Part V - Comets
Information
Symposium - International Astronomical Union , Volume 152: Chaos, Resonance and Collective Dynamical Phenomena in the Solar System , 1992 , pp. 287 - 290
Copyright
Copyright © Kluwer 1992 

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