Anomalous C-12H4:C-13H4 strengths in 3 NY sub 3

Details Anomalous C-12H4:C-13H4 strengths in 3 NY sub 3 Anomalous C-12H4:C-13H4 strengths in 3 NY sub 3

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l.101b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, July 15, 1981, p. L101-L104. NASA-NSF-supported research.

Astronomy and Astrophysics

Astrophysics

14

Abundance, Astronomical Spectroscopy, Infrared Spectra, Jupiter Atmosphere, Methane, Saturn Atmosphere, Isotopes, Line Spectra, Planetology

Scientific paper

The C-12:C-13 ratios in the atmospheres of the outer planets are important parameters with which to test models for isotope formation and fractionation during the early history of the solar system, yielding insight into processes occurring in the primitive solar nebula. The 3 ny3 spectra of methane were obtained using the Kitt Peak Solar Fourier Transform Spectrometer and a 6 m White cell. The experimental results are summarized in a table. The strength ratios for the R-branch of 3 ny3 exhibit strong anomalies, with C-13H4 lines consistently weaker than their C-12H4 counterparts. The C-12:C-13 abundance ratios for the atmospheres of Jupiter and Saturn have been redetermined using the 3 ny3 line-strength ratios measured.

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