Astonomical and laboratory detection of the SiC radical
1989; IOP Publishing; Volume: 341; Linguagem: Inglês
10.1086/185449
ISSN1538-4357
AutoresJ. Cernicharo, C. A. Gottlieb, M. Guélin, P. Thaddeus, J. M. Vrtilek,
Tópico(s)Silicon Effects in Agriculture
Resumoview Abstract Citations (213) References (9) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Astronomical and Laboratory Detection of the SiC Radical Cernicharo, J. ; Gottlieb, C. A. ; Guelin, M. ; Thaddeus, P. ; Vrtilek, J. M. Abstract Laboratory and space observations of a number of mm-wave rotation lines in the previously unobserved 3Pi electronic ground state of the SiC radical are discussed. Laboratory-derived frequencies, accurate to better than 0.1 ppm, are used to obtain a highly precise determination of the fine structure, rotational, centrifugal distortion, and Lambda-doubling constants of the SiC ground state. It is found that SiC is appreciably extended toward IRC+10216, with a diameter of at least 54 arcsec. Publication: The Astrophysical Journal Pub Date: June 1989 DOI: 10.1086/185449 Bibcode: 1989ApJ...341L..25C Keywords: Free Radicals; Interstellar Chemistry; Radio Astronomy; Silicon Carbides; Stellar Envelopes; Electron States; Fine Structure; Ground State; Molecular Rotation; Spectrum Analysis; Atomic and Molecular Physics; INTERSTELLAR: MOLECULES; LABORATORY SPECTRA; LINE IDENTIFICATIONS; RADIO SOURCES: LINES; STARS: CIRCUMSTELLAR SHELLS full text sources ADS | data products SIMBAD (1)
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