The McDonald Observatory Faint Comet Survey - Gas production in 17 comets

Details The McDonald Observatory Faint Comet Survey - Gas production in 17 comets The McDonald Observatory Faint Comet Survey - Gas production in 17 comets

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...98..151c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 98, no. 2, Aug. 1992, p. 151-162.

Astronomy and Astrophysics

Astronomy

63

Astronomical Observatories, Comet Tails, Interstellar Gas, Sky Surveys (Astronomy), Astronomical Spectroscopy, Cn Emission, Emission Spectra

Scientific paper

The complete Intensified Dissector Scanner data set on 17 comets is presented, and production rates are derived and analyzed. It is shown that there is a strong degree of homogenization in the production rate ratios of many comets. It also appears that the ratio of the production rates of the various species has no heliocentric distance dependence, except for the case of NH2. When speaking of the gas in the coma of a comet, it appears that comets must have been formed under remarkably uniform conditions, and that they must have evolved and formed their comae in a similar manner. The data presented here constitute strong evidence that the minor species must be bound up in a lattice and that the interior of a comet must be reasonably uniform.

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