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Title:
Additional measurements and a refined analysis of the millimeter- and submillimeter-wave spectrum of methanol
Authors:
Anderson, Todd; De Lucia, Frank; Herbst, Eric
Affiliation:
AA(Duke University, Durham, NC), AB(Duke University, Durham, NC), AC(Köln, Universität, Cologne, Germany)
Publication:
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 72, April 1990, p. 797-814. (ApJS Homepage)
Publication Date:
04/1990
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Spectroscopy, Interstellar Matter, Methyl Alcohol, Microwave Spectra, Millimeter Waves, Electron Transitions, Interstellar Gas, Rotational Spectra, Transition Probabilities
DOI:
10.1086/191434
Bibliographic Code:
1990ApJS...72..797A

Abstract

A total of 414 previously unobserved millimeter- and submillimeter-wave transitions of (C-12)H3OH through J = 10 and v(t) = 2 are assigned. These data and previous measured spectral transitions are combined and fitted by a modified internal axis method (IAM) treatment in which the A and E substates are treated separately and a wide variety of new rotational-torsional interaction terms are employed. The modified IAM treatment reduces the overall rms deviation of the fits to the level of experimental accuracy. The resultant spectroscopic constants allow for the accurate prediction of 569 additional transitions through J = 12 or less.

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Database: Astronomy
Physics
arXiv e-prints