Comet Halley near-nucleus phenomena in 1986

Details Comet Halley near-nucleus phenomena in 1986 Comet Halley near-nucleus phenomena in 1986

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250b.145l&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 2: Dust and Nucleus p 145-150 (SEE N

Astronomy and Astrophysics

Astronomy

1

Astronomical Photography, Comet Nuclei, Halley'S Comet, Space Observations (From Earth), Cyano Compounds, Image Resolution, Particle Laden Jets

Scientific paper

Computer enhanced high resolution groundbased images taken during Halley's most active phases in 1985-86 exhibit all of the coma structures identified in 1910 photographs. The structures result mostly from discrete dust jet activity producing spirals, arcs, and jagged-edged envelopes. Multiple nucleus and antisunward jet phenomena are also observed. The curvature of the jets is consistent with the location of the Earth with respect to the nucleus equatorial plane. The variation in jet activity during the Vega and Giotto flybys is easily seen on the groundbased images. Images of CN jets show that they usually do not correlate with dust jets. Wide field, medium resolution images of faint outer envelopes are required to augment the smaller field, high resolution images of near-nucleus jets in modeling the jets.

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