The atomic carbon distribution in the coma of Comet Halley

Details The atomic carbon distribution in the coma of Comet Halley The atomic carbon distribution in the coma of Comet Halley

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250a.431w&link_type=abstract

In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 1: Plasma and Gas p 431-435 (SEE N87

Computer Science

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6

Atomic Recombination, Carbon 12, Halley'S Comet, Radial Distribution, Ultraviolet Spectroscopy, Cometary Atmospheres, Far Ultraviolet Radiation, Rocket Sounding

Scientific paper

The radial distributions of CO, O I, C I, and C II emissions in the coma of comet Halley were measured by a long-slit far ultraviolet spectrograph aboard a sounding rocket on 26 February and 13 March 1986. While the CO profiles strongly suggest that CO is vaporized directly from the nucleus, the observed carbon distribution is not consistent with a radial outflow model of CO, suggesting an additional source of atomic carbon in the inner coma. Based on the in situ plasma measurements from the Vega and Giotto spacecraft, it is possible that this additional source of carbon could be the recombination of ionized CO in the inner coma.

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