Microwave Spectrum of a Silicon Monoxide Isotopomer: [TSUP]28[/TSUP]S[CLC]i[/CLC][TSUP]18[/TSUP]O
Authors:
Open Access
- 20 March 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 496 (1) , L51-L52
Abstract
The rotational transitions of 28Si18O in the ground vibrational state were observed by laboratory microwave spectroscopy for astronomical use. The SiO molecules were generated in a free-space absorption cell by dc-glow discharge in a mixture of tetra-methyl silane, Si(CH3)4, and 18O2. Ten rotational transitions were precisely measured in the 40-444 GHz region. The rotational and centrifugal distortion constants were determined by a least-squares analysis of measured line frequencies: B0=20176.4394(43) and D0=0.025809(32) MHz, with the 3 σ deviations in parentheses.Keywords
This publication has 12 references indexed in Scilit:
- Laboratory submillimeter-wave observation of the N = 1-0 transition of the ND(3Sigma-) radicalThe Astrophysical Journal, 1993
- Astronomical MasersAnnual Review of Astronomy and Astrophysics, 1992
- Detection of SiO emission in the L1157 dark cloudThe Astrophysical Journal, 1992
- The millimeter-wave spectrum of highly vibrationally excited SiOThe Astrophysical Journal, 1991
- Vibration-rotation parameters for high-temperature silicon monoxide from sunspot spectraJournal of Molecular Spectroscopy, 1985
- The infrared spectrum of SiO near 1240 cm−1 and its relation to the circumstellar SiO maserJournal of Molecular Spectroscopy, 1981
- Molecular Spectra and Molecular Structure1979
- Millimeter spectrum and molecular constants of silicon monoxidePhysical Review A, 1977
- Detection of Possible Maser Emission Near 3.48 Millimeters from an Unidentified Molecular Species in OrionThe Astrophysical Journal, 1974
- Notizen: Das Mikrowellenrotationsspektrum des SiOZeitschrift für Naturforschung A, 1968