Observational upper limits for the CS(+) molecular ion in diffuse interstellar clouds

Details Observational upper limits for the CS(+) molecular ion in diffuse interstellar clouds Observational upper limits for the CS(+) molecular ion in diffuse interstellar clouds

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...168..259f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 168, no. 1-2, Nov. 1986, p. 259-261.

Astronomy and Astrophysics

Astrophysics

8

Astronomical Spectroscopy, Carbon Compounds, Interstellar Matter, Molecular Clouds, Molecular Ions, Absorption Spectra, Abundance, Line Spectra, Ophiuchi Clouds, Sulfur Compounds, Visible Spectrum

Scientific paper

The lines at 6840 A corresponding to the band head (3-0) of the A2Pi3/2-X2Sigma(+)1/2 transition of CS(+) towards the Zeta Oph and Zeta Per lines of sight are not detected from observations recorded with the Coude Echelle Spectrometer at the La Silla ESO. Upper limits of 1.9 x 10 to the 11th/sq cm for Zeta Oph and 1.2 x 10 to the 12th/sq cm for Zeta Per are derived for the column density of CS(+). The conclusion of Ferlet et al. (1983) that the observed feature near 6702 A is mainly due to CS(+) is not confirmed.

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