Giant molecular clouds in the Galaxy. II - Characteristics of discrete features

Details Giant molecular clouds in the Galaxy. II - Characteristics of discrete features Giant molecular clouds in the Galaxy. II - Characteristics of discrete features

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...289..373s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 289, Feb. 1, 1985, p. 373-387. Research supported by the Guggenheim Foundat

Astronomy and Astrophysics

Astronomy

260

Interstellar Gas, Milky Way Galaxy, Molecular Clouds, Nebulae, Radial Distribution, Spatial Distribution, Carbon Monoxide, H Ii Regions, Molecular Spectra, Radio Sources (Astronomy)

Scientific paper

The distribution of molecular clouds in the Galactic disk is investigated on the basis of 115.2712-GHz CO observations obtained using the 11-m NRAO and 14-m FCRAO antennas at half-power beamwidths 66 and 50 arcsec, respectively, during 1978-1980. The data, selected from the catalog of Solomon et al. (1984) and including 315 discrete emission features of chord greater than 10 pc, are presented in tables, maps, and graphs and characterized in detail. Findings presented include a correlation between the longitude and velocity of strong CO features and giant H II regions, a wider distribution of cooler clouds, a ringlike concentration of cloud number density at radius 4-8 kpc, and power-law relationships between cloud line width and size and between mean cloud density and size. A total of about 6000 giant molecular clouds of mass greater than 100,000 solar mass and diameter greater than 22 pc is found to contain about 85 percent of the H2 mass of the inner galaxy and to represent the largest interstellar-matter reservoir (about 3 x 10 to the 9th solar mass) in that region.

Affiliated with

Also associated with

No associations

Rating

Giant molecular clouds in the Galaxy. II - Characteristics of discrete features does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Giant molecular clouds in the Galaxy. II - Characteristics of discrete features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Giant molecular clouds in the Galaxy. II - Characteristics of discrete features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1590989