Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...358..183v&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 358, July 20, 1990, p. 183-188.
Astronomy and Astrophysics
Astrophysics
9
Astronomical Spectroscopy, Carbon Monoxide, H Ii Regions, Infrared Spectra, Molecular Clouds, Stellar Spectra, Angular Resolution, Carbon Isotopes, Physical Properties
Scientific paper
The W48 molecular cloud has been observed in the J = 2-1 transitions of three CO isotopes near 230 GHz with a high angular resolution. The gas density is about 10,000/cu cm and the total mass is about 1500 solar. Several clumps of density 100,000/cu cm to 10 million/cu cm may exist inside the extended gas cloud. The back edge of the extended cloud is a adjacent to a broad H II region, and could be the site of ongoing high-mass star formation.
MacLeod John M.
Vallee Jacques P.
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