Abstract
view Abstract Citations (30) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Laboratory Detection of a New Free Radical C 4S ( 3 Sigma -) Hirahara, Yasuhiro ; Ohshima, Yasuhiro ; Endo, Yasuki Abstract A free radical C4S has been detected for the first time by using a Fabry-Perot-type Fourier-transform microwave spectrometer combined with a pulsed discharge nozzle. Rotationally cooled (about 1-2 K) C4S in its ground electronic state (3Sigma-) has been produced by a discharge in a supersonic free jet of Ar-diluted samples of C2H2 and CS2. The observed spectrum of C4S in the 5-24 GHz region was analyzed to determine the rotational constant and the spin-spin interaction constant. Toward the astronomical detection, transition frequencies of C4S in the millimeter-wave region are tabulated. Publication: The Astrophysical Journal Pub Date: May 1993 DOI: 10.1086/186844 Bibcode: 1993ApJ...408L.113H Keywords: Carbon; Free Radicals; Interstellar Gas; Organic Sulfur Compounds; Fabry-Perot Spectrometers; Fourier Transformation; Ground State; Microwave Spectrometers; Atomic and Molecular Physics; ISM: MOLECULES; LINE: IDENTIFICATION; MOLECULAR DATA; MOLECULAR PROCESSES; RADIO LINES: ISM full text sources ADS |
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