Comet P/Halley's near-nucleus jet activity

Details Comet P/Halley's near-nucleus jet activity Comet P/Halley's near-nucleus jet activity

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.278..337t&link_type=abstract

In ESA, Proceedings of the International Symposium on the Diversity and Similarity of Comets p 337-342 (SEE N88-21884 14-91)

Physics

4

Comet Nuclei, Cosmic Dust, Halley'S Comet, Emission Spectra, Giotto Mission, Spaceborne Photography

Scientific paper

The Halley Multicolour Camera (HMC) on board the European spacecraft, Giotto, returned high resolution images of the nuclear and near-nuclear regions of comet P/Halley in March 1986. The images transmitted in the seconds prior to closest approach allow a detailed study of an active region down to a resolution of ≡50 m per pixel. Variations in activity within the main emission have been observed and results are presented which indicate deviations from a r-1 law to a less steep profile near the source region. The results obtained provide new constraints on models of cometary jet activity.

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