The millimeter- and submillimeter-wave spectrum of (C-13)H3OH revisited

Details The millimeter- and submillimeter-wave spectrum of (C-13)H3OH revisited The millimeter- and submillimeter-wave spectrum of (C-13)H3OH revisited

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apjs...74..647a&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 74, Oct. 1990, p. 647-664.

Astronomy and Astrophysics

Astrophysics

22

Atomic Spectra, Carbon 13, Interstellar Matter, Methyl Alcohol, Millimeter Waves, Submillimeter Waves, Electron Transitions, Mean Square Values, Quantum Numbers, Spectrum Analysis

Scientific paper

A total of 245 previously unobserved millimeter- and submillimeter-wave transitions of (C-13)H3OH for J not above 10 were assigned on the basis of measurements with a spectrometer which uses 40-60 GHz klystrons as fundamental radiation sources. These transitions were combined with the previously assigned 596 transitions and were analyzed using a modified internal-axis-method model which treats the symmetric (A) and degenerate (E) substates separately. As a result of the expansion of the (C-13)H3OH data set to cover the same range as the data set of a previous (C-12)H3OH analysis by Anderson et al. (1990), rigid criteria of self-consistency could be applied for the selection and the value of the constants between the isotopic species. The spectral constants obtained were used to make accurate predictions of 562 additional transitions of (C-13)H3OH for v(t) = 0, 1, 2 and rotational quantum number J equal to or less than 12.

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