Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...352l..21m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 352, March 20, 1990, p. L21-L23.
Astronomy and Astrophysics
Astronomy
8
Carbon Isotopes, Radio Sources (Astronomy), Rotational Spectra, Silicon Carbides, Stellar Envelopes, Hyperfine Structure, Line Spectra, Molecular Excitation, Vibrational Spectra
Scientific paper
The millimeter-wave rotational spectra of SiC-13 and vibrationally excited SiC in the X3Pi state have been measured between 149 and 291 GHz in a laboratory discharge through SiH4 and CO. Hyperfine splittings in the SiC-13 spectra are well resolved, allowing accurate determination of all four hyperfine constants. The fine-structure, rotational, centrifugal distortion, and lambda-doubling constants for SiC-13 and v = 1 SiC have been determined to sufficient accuracy that the entire rotational spectrum can be calculated into the far-IR.
Gottlieb Carl A.
Mollaaghababa Reza
Thaddeus Patrick
Vrtilek Jan M.
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