Profile study of 12C13C features in comets

Details Profile study of 12C13C features in comets Profile study of 12C13C features in comets

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c...3k&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 3-5 (SEE N87-26714 20-

Computer Science

Carbon 12, Carbon 13, Chemical Composition, Comets, Abundance, Ratios, Spectrum Analysis, Statistical Analysis, Swan Bands

Scientific paper

It is shown from detailed statistical equilibrium calculations of the 12C13C molecule that the interpretation of the observed intensities of Swan bands of normal and the isotopic molecule of C2 in terms of the abundance ratio of 12C and 13C is a reasonable one. The determination of the isotopic ratio 12C/13C which is based on the analysis of low resolution spectra of (1, 0) Swan band of the isotopic feature occurring at 4745 Å, is uncertain due to blending of NH2 lines. The author has shown that the blending problem can greatly be avoided through the profile analysis of the isotopic feature. The synthetic profile of (0, 0) Swan band of the isotopic feature is also compared with the observations on comet West.

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