Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410l..45k&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 410, no. 1, p. L45-L47.
Astronomy and Astrophysics
Astrophysics
18
Astronomical Spectroscopy, Interstellar Matter, Late Stars, Line Spectra, Microwave Spectra, Radio Spectroscopy, Stellar Envelopes, Acetylene, Carbon Compounds, Carbon Disulfide, Fabry-Perot Spectrometers, Molecular Energy Levels, Sulfur Compounds, Supersonic Jet Flow
Scientific paper
The rotational spectrum of C5S in the X 1Sigma+(v = 0) ground state has been observed for the first time using a Fabry-Perot-type Fourier transform microwave spectrometer combined with a pulsed discharge nozzle. C5S was generated by a discharge in a mixture of CS2 and C2H2 diluted in Ar, and subsequently cooled down to a few kelvins in a supersonic jet. Eight rotational transitions of C5 32S have been observed in the 5-20 GHz region. Three lines for the less abundant S-34 species have also been detected to confirm the carrier of the observed lines to be C5S. Determined spectroscopic constants will allow a deep radio astronomical search for C5S in interstellar clouds and circumstellar envelopes of late-type stars.
Endo Yasuki
Hirahara Yasuhiro
Kasai Yasuko
Kawaguchi Kentarou
Murakami Akinori
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