Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apjs...68..821a&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 68, Dec. 1988, p. 821-831. NSERC-supported research.
Astronomy and Astrophysics
Astronomy
12
Carbon Isotopes, Interstellar Matter, Methyl Alcohol, Millimeter Waves, Molecular Spectra, Submillimeter Waves, Line Spectra, Molecular Excitation, Quantum Numbers, Radio Astronomy, Rotational Spectra
Scientific paper
The rotational-torsional spectrum of (C-13)H3OH is presented in both the symmetric and degenerate substates of the first two excited torsional states. Of the new transitions reported, 122 lines are from the v(t) = 1 torsional state and 110 lines are from the v(t) = 2 torsional state, and all are confined to the rotational quantum number J = 8 or less. The data are combined with previously reported millimeter and submillimeter data for the v(t) = 0 torsional state and 44 previously measured excited torsional state lines to form a global data set of 596 transitions, which is analyzed and fitted using an extended internal axis method. The fit results in an overall rms deviation of 1.98 MHz. The spectral constants generated by the fit are used to predict an additional 123 lines of (C-13)H3OH in the v(t) = 1,2 excited torsional states with frequencies up to 612 GHz and rotational quantum number J = 11 or less.
Anderson Todd
de Lucia Frank C.
Herbst Eric
Lees Martin Richard
Sastry V. L. N. K.
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