Observations of SO in dark and molecular clouds

Details Observations of SO in dark and molecular clouds Observations of SO in dark and molecular clouds

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235l.171r&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 235, Feb. 1, 1980, p. L171-L175. Research supported by the Universit

Astronomy and Astrophysics

Astrophysics

46

Astronomical Spectroscopy, Interstellar Gas, Nebulae, Sulfur Oxides, Abundance, Interstellar Chemistry, Spectral Line Width, Traveling Wave Masers

Scientific paper

The 1(0)-0(1) transition of SO at 30 GHz has been observed in several sources, including the first detection of sulfur monoxide in cold dark clouds without apparent internal energy sources. The SO transition appears to be an excellent tracer of structure in dark clouds, and the data support suggestions that self-absorption is important in determining emission profiles in such regions for large line-strength transitions. Column densities estimated from a comparison of the results for the two isotopic species indicate a high fractional abundance of SO in dark clouds.

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