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Rotational Behavior of Cometary-type Bodies

Published online by Cambridge University Press:  07 August 2017

Eric Bois ,
Pascal Oberti  and
Claude Froeschlé
Eric Bois
Affiliation:
Observatoire de la Côte d'Azur, Av. N. Copernic, F-06130 Grasse, France
Pascal Oberti
Affiliation:
Observatoire de la Côte d'Azur, Le Mont Gros, B.P. 139, F-06003 Nice Cedex, France
Claude Froeschlé
Affiliation:
Observatoire de la Côte d'Azur, Le Mont Gros, B.P. 139, F-06003 Nice Cedex, France

Abstract

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The present paper deals with a general dynamical qualitative study of the rotational motion for cometary-type bodies submitted to gravitational torques. Numerical experiments of the evolution of comet nucleus attitude have been then performed, including the Sun and Jupiter's disturbing torques in the model. Results show small effects of the solar gravitational perturbation for Halley-type orbits. Only a very close-approach with Jupiter induces notable effects. The latter configuration presents some interesting sensitivity to initial conditions.

Keywords

comet nucleirotationEulerian oscillationsphysical librationsclose-approach
Type
Part V - Comets
Information
Symposium - International Astronomical Union , Volume 152: Chaos, Resonance and Collective Dynamical Phenomena in the Solar System , 1992 , pp. 291 - 296
Copyright
Copyright © Kluwer 1992 

References

1. Bois, E., Oberti, P., Froeschlé, C. (1991) “Gravitational Model of Comet Nucleus Rotation”, submitted to Celestial Mechanics. Google Scholar
2. Bois, E., (1986) “First-order theory of satellite attitude motion - Application to Hipparcos”, Celestial Mechanics 39, 309–327.Google Scholar
3. Peale, S.J., Lissauer, J.J. (1989) “Rotation of Halley's comet”, Icarus 79, 396–430.Google Scholar