IRAS observations of giant molecular clouds in the Milky Way

Details IRAS observations of giant molecular clouds in the Milky Way IRAS observations of giant molecular clouds in the Milky Way

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inpr.conf...97m&link_type=abstract

In NASA. Ames Research Center Summer School on Interstellar Processes: Abstracts of Contributed Papers p 97-98 (SEE N87-15043 0

Astronomy and Astrophysics

Astronomy

Infrared Astronomy Satellite, Infrared Radiation, Milky Way Galaxy, Molecular Clouds, Carbon Monoxide, Emission Spectra, Flux Density

Scientific paper

The IRAS data base has been used to study infrared radiation from molecular clouds in our galaxy. The sample of clouds was restricted to those with reliably determined molecular masses from large area, multi-isotope CO maps. They were normalized to X(CO-13)= 2x10 to the -6. Flux densities at 60 microns and 100 microns were determined by integrating the flux density within rectangles drawn on the sky flux plates after subtracting a suitable background. The rectangles were chosen to be coextensive with the areas mapped in CO. Color corrections were made and luminosites calculated by assuming the optical depths were proportional to frequency. The flux densities were converted to dust masses with a value for 4a rho/3Q = .04 g/cm at 100 microns.

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