The relation between carbon monoxide emission and visual extinction in cloud L134

Details The relation between carbon monoxide emission and visual extinction in cloud L134 The relation between carbon monoxide emission and visual extinction in cloud L134

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...210..679t&link_type=abstract

Astrophysical Journal, vol. 210, Dec. 15, 1976, pt. 1, p. 679-683.

Astronomy and Astrophysics

Astrophysics

63

Carbon Monoxide, Galactic Radiation, Hydrogen Clouds, Interstellar Extinction, Interstellar Gas, Microwave Emission, Nebulae, Abundance, Electron Transitions, Gas Density, Thermodynamic Equilibrium

Scientific paper

Emission from the J = 1-0 transition of carbon monoxide has been mapped over an area of 40 by 55 arcmin in cloud L134, and visual extinctions over the entire cloud have been obtained by means of star counts. Line intensities of at least 2 K are observable down to an extinction level of about one magnitude. From observations of the J = 1-0 transition of the (C-13)O isotopic species at 18 locations in the cloud, a linear correlation is found between the local thermodynamic equilibrium (LTE) column densities of (C-13)O and magnitudes of visual extinction.

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