Molecular clouds in the outer Galaxy. III - CO studies of individual clouds

Details Molecular clouds in the outer Galaxy. III - CO studies of individual clouds Molecular clouds in the outer Galaxy. III - CO studies of individual clouds

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330..399m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 1, 1988, p. 399-414.

Statistics

Computation

59

Carbon Monoxide, Line Spectra, Milky Way Galaxy, Molecular Clouds, Star Formation, B Stars, Computational Astrophysics, Cosmic Rays, Energy Spectra, H I Regions, Histograms, O Stars, Optical Thickness

Scientific paper

Physical conditions and related star-forming activities have been investigated in 31 molecular clouds in the outer Galaxy. All clouds were mapped in the CO (J = 1→0) line. In addition, overlapping subsets of 10 clouds were mapped in 13CO (J = 1→0) and 11 in CO (J = 2→1). On a large scale, the clouds follow the H I warp, and there appears to be an arm at R ≡ 13 kpc, coincident with a feature in the H I surface density distribution. Most clouds lie between R = 11.5 kpc and R = 14 kpc. An average cloud is 40 pc in the longest dimension. Most observed clouds have masses in the range 104 - 105M_sun;.

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