The abundance of CO in diffuse interstellar clouds - an ultraviolet survey

Details The abundance of CO in diffuse interstellar clouds - an ultraviolet survey The abundance of CO in diffuse interstellar clouds - an ultraviolet survey

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...242..545f&link_type=abstract

Astrophysical Journal, Part 1, vol. 242, Dec. 1, 1980, p. 545-559.

Astronomy and Astrophysics

Astronomy

130

Abundance, Carbon Monoxide, Interstellar Chemistry, Interstellar Gas, Ultraviolet Astronomy, Carbon, Cosmic Rays, Emission Spectra, Gas Density, Hydrogen Clouds, Oao 3, Radio Astronomy, Supernovae, Ultraviolet Absorption

Scientific paper

CO was detected in 17 directions and its upper limits were estimated in 21 directions by a UV survey carried out with the Copernicus satellite in the C-X 1088 A and E-X 1076 A lines toward 48 bright stars. The CO column densities range from 10 to the 12th to 10 to the 17th/sq cm and correlate with C I and H2. The tendency of the C I/CO ratio to be about 10 follows the ratio of particular atomic and molecular cross-sections and the physical parameters of interstellar clouds. Finally, the connection between UV observations in diffuse clouds and radio observations of (C-13)O in dark clouds is discussed.

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