Non-gravitational effects in Harrington-Abell comet motion due to Jupiter

Details Non-gravitational effects in Harrington-Abell comet motion due to Jupiter Non-gravitational effects in Harrington-Abell comet motion due to Jupiter

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500..461g&link_type=abstract

In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed

Computer Science

Comets: Harrington-Abell, Dynamics, Jupiter

Scientific paper

The comet Harrington-Abell had the close approach to Jupiter in 1974. It has been supposed that there exists some additional non-gravitational acceleration in the cometary motion, which is inversely proportional to the squared Jupiter-comet distance. The coefficients of proportionality as obtained from observations are (4.57±0.46)×10-10 au/day2 for the Jupiter-center radial component of the mentioned acceleration and (-7.20±0.42)×10-10 au/day2 for transversal one. The hypothesis of the partial disintegration of the cometary nucleus at the approach to Jupiter had resulted in displacing the nucleus center of inertia in directions of Jupiter at a value of -1.83±0.75 km. It means that the exterior part of cometary nucleus has been broken during approach.

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