Other
Scientific paper
Jul 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997dps....29.3211c&link_type=abstract
American Astronomical Society, DPS meeting #29, #32.11; Bulletin of the American Astronomical Society, Vol. 29, p.1035
Other
1
Scientific paper
The poster reports some preliminary results obtained by the the European HB Team during an observational campaign, carried out with a substantial number of telescopes on the Canary Islands within a programme supported by the European Union. The observations were devoted to a variety of spectroscopic and photometric topics and have already provided important results. A highlight of this work was the discovery of a third tail composed of neutral sodium and the detection of substantial amount of sodium in the dust tail. Potassium was found in the nuclear region and it was possible to obtain good definition of the rotation state of the comet nucleus. Other results are expected from the analysis of high resolution spectra, for instance the carbon isotopic ratio, the relative abundance of some ions in the coma, and of the very large collection of images from different telescopes with which the complex jet structure of the near nucleus region was monitored.
Arpigny Claude
Bockelée-Morvan Dominique
Boehnhardt Hermann
Cremonese Gabriele
Crovisier Jacques
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