CN jet velocity in Comet P/Halley

Details CN jet velocity in Comet P/Halley CN jet velocity in Comet P/Halley

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...95...73k&link_type=abstract

Icarus (ISSN 0019-1035), vol. 95, Jan. 1992, p. 73-85.

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Comet Heads, Cyanogen, Flow Velocity, Gas Jets, Halley'S Comet, Gas Expansion, Image Processing, Radial Velocity, Time Series Analysis

Scientific paper

The projected expansion velocity of Comet Halley's coma is presently determined in CN jet images that were processed with a radial profile subtraction technique. It is established that the flow is approximately radial, and that the velocity can also be determined by measuring specific radial features in jets. The largest projected velocity is 1.7 +/- 0.3 km/sec, at 50,000 km from the nucleus. This is the largest expansion velocity found for this region of the Comet Halley coma. Comparisons are made with other observations and theoretical models.

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