Rotational spectra of carbon 13 and vibrationally excited SiC

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185684· OSTI ID:6690641

Mollaaghababa, R; Gottlieb, C A; Vrtilek, J M; Thaddeus, P ^[1]

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1. Harvard Univ., Cambridge, MA (USA) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)

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. 15 refs.

• OSTI ID: 6690641
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 352; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBIDES
CARBON COMPOUNDS
CARBON ISOTOPES
COSMIC RADIO SOURCES
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYPERFINE STRUCTURE
INFRARED SPECTRA
ISOTOPES
MOTION
ROTATION
SILICON CARBIDES
SILICON COMPOUNDS
SPECTRA
STARS