Identification of C-13 methane in the atmosphere of Saturn

Details Identification of C-13 methane in the atmosphere of Saturn Identification of C-13 methane in the atmosphere of Saturn

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....40...81c&link_type=abstract

Astronomy and Astrophysics, vol. 40, no. 1-2, Apr. 1975, p. 81-84.

Astronomy and Astrophysics

Astrophysics

12

Astronomical Spectroscopy, Carbon 13, Methane, Planetary Atmospheres, Saturn (Planet), Abundance, Atmospheric Composition, Fourier Transformation, Line Spectra, Spectral Line Width, Spectrum Analysis

Scientific paper

Results are presented for analysis of the R(J) lines of the C-13 methane 3 nu-3 band in high-resolution spectra of Saturn obtained by Fourier spectroscopy. A C-12/C-13 ratio of 60 plus 40 or minus 15 is estimated from a comparison of the observed line strengths with the corresponding line strengths of the same band in C-12 methane. This deduced isotopic ratio is shown not to be inconsistent with the C-12/C-13 ratio generally accepted for the sun, the telluric planets, meteorites, comets, and the local interstellar medium.

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