Cometary coma ions

Details Cometary coma ions Cometary coma ions

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193..263a&link_type=abstract

Astrophysical Journal, vol. 193, Oct. 1, 1974, pt. 1, p. 263, 264.

Astronomy and Astrophysics

Astrophysics

31

Chemical Composition, Comet Nuclei, Molecular Ions, Water, Ammonia, Evaporation Rate, Molecular Spectra, Sodium

Scientific paper

For comets whose nuclei are composed of water ice conglomerates it is shown that the ion H3O(+) can predominate to distances of 5000 km in the subsolar direction. Beyond this distance H2O(+) is the most important ion. The crossover point is a sensitive function of the rate of evaporation from the nucleus. The presence of ammonia or metals such as sodium, in concentrations greater than 0.1% H2O, can lead to NH4(+) and Na(+) ions.

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