Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246..210c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 1, June 1991, p. 210-212.
Astronomy and Astrophysics
Astrophysics
15
D Lines, Hydrocarbons, Interstellar Matter, K Lines, Nebulae, Stellar Spectra, Abundance, Calcium, Molecular Clouds, Sodium, Spectral Line Width
Scientific paper
Results are reported from an experimental study of high-resolution observations of interstellar CH, CH(+), Ca II and Na I toward the star HD 110432. The CH line was found to consist of two closely spaced velocity components, which is consistent with the velocity structure of the Coalsack determined from CO observations by Nyman et al. (1989). No significant velocity difference was found between the strongest CH component and the CH(+) line, which may be inconsistent with shock theories of CH(+) production.
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