A study of the 3 ν3CH 4 region in a high-resolution spectrum of Jupiter recorded by Fourier transform spectroscopy
Abstract
A spectrum of Jupiter between 6000 and 12 000 cm - at high resolution (0.05 cm -) was recorded with a Michelson interferometer at Palomar Mountain in October 1974. An analysis of the R branch of the 3 ν3CH 4 band with the reflecting-layer model, taking into account the H 2 absorption which occurs in the same spectral range, leads to a Lorentzian half-width of 0.09 ± 0.02 cm -1, a rotational temperature of 175 ± 10° K, and a CH 4 abundance of order 52m atm. Five lines of the 13CH 43ν 3 band have been identified; a comparison with new laboratory spectra indicates that the 13CH 4/ 12CH 4 ratio in the Jupiter atmosphere is close to the terrestrial ratio.
- Publication:
-
Icarus
- Pub Date:
- October 1976
- DOI:
- 10.1016/0019-1035(76)90059-2
- Bibcode:
- 1976Icar...29..307D
- Keywords:
-
- Absorption Spectra;
- Fourier Transformation;
- High Resolution;
- Infrared Spectroscopy;
- Jupiter (Planet);
- Methane;
- Spectrum Analysis;
- Michelson Interferometers;
- Planetary Radiation;
- Pressure Effects;
- Spectral Resolution;
- Temperature Effects