Other
Scientific paper
Apr 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...213..390r&link_type=abstract
Astrophysical Journal, Part 1, vol. 213, Apr. 15, 1977, p. 390-393. Research supported by Aerospace Corp.
Other
31
Abundance, Infrared Radiation, Interstellar Matter, Microwave Emission, Molecular Gases, Submillimeter Waves, Carbon Monoxide, Cosmic Dust, Gas Density, Interstellar Radiation, Nebulae, Optical Thickness
Scientific paper
The relationship between dust and molecular gas within a molecular cloud is studied by investigating the correlation of 350-micron and 1-mm optical depths with (C-13)O column density in ten very dense molecular sources that are visibly opaque and probably characterized by an extinction factor well in excess of 20. The cited correlation is examined at a number of points within Sgr B2 and at the peak molecular positions in the other nine sources. A strong correlation is found in each case, and the overall correlations obtained are shown to be real, internally consistent, and not markedly influenced by the assumption that the dust temperature is twice the gas temperature. Contributions to the observed scatter in the correlations are assessed.
Righini-Cohen G.
Simon Manfred
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