Abstract
view Abstract Citations (79) References (58) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Molecular Abundances in the High-Latitude Molecular Clouds Magnani, Loris ; Blitz, Leo ; Wouterloot, Jan G. A. Abstract The abundances of CO, OH, and H2CO are determined for a sample of high-latitude molecular clouds. In spite of the low average extinction of these objects (Av ≡ 0.6 mag), which is similar to the extinction in the diffuse molecular clouds identified via UV absorption lines, the high-latitude clouds show abundances similar to those of the dark molecular clouds, where the gas phase chemistry is substantiallay different. The N(H2)/WCO ratio is determined from the CO and extinction data and produces individual cloud values ranging from 1×1020 to 6×1020 molecules cm-2K-1(km s-1)-1. Possible explanations for the enhanced molecular abundances in the high-latitude clouds with respect to the diffuse molecular clouds are outlined. Publication: The Astrophysical Journal Pub Date: March 1988 DOI: 10.1086/166149 Bibcode: 1988ApJ...326..909M Keywords: Absorption Spectra; Abundance; Carbon Monoxide; Hydroxyl Emission; Line Spectra; Molecular Clouds; Dark Matter; Interstellar Matter; Ultraviolet Spectra; Vapor Phases; Astrophysics; INTERSTELLAR: ABUNDANCES; INTERSTELLAR: MOLECULES full text sources ADS | data products SIMBAD (18)
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