Detection of CH and CH(+) in a high latitude molecular cloud

Details Detection of CH and CH(+) in a high latitude molecular cloud Detection of CH and CH(+) in a high latitude molecular cloud

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...203l..23d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 203, no. 2, Sept. 1988, p. L23-L26.

Astronomy and Astrophysics

Astronomy

39

Absorption Spectra, Hydrocarbons, Molecular Clouds, Abundance, Carbon Monoxide, Emission Spectra, Hydrogen, Infrared Astronomy Satellite

Scientific paper

Interstellar absorption lines of CH and CH+ have been detected toward the star HD 210121, which is located behind a previously unknown high latitude cloud. The CH observations and the measured extinction toward the star provide independent measures of the H2 column density along the line of sight, which are compared with that deduced from CO millimetre observations. The inferred CH+ column density is comparatively small, suggesting that shocks do not play a dominant role in the chemistry in the cloud.

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