Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311..371m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. 371-379.
Astronomy and Astrophysics
Astronomy
50
Infrared Sources (Astronomy), Molecular Flow, Pre-Main Sequence Stars, Stellar Luminosity, Stellar Winds, Infrared Astronomy Satellite, Radial Distribution
Scientific paper
Far-infrared luminosities are derived for 45 sources associated with molecular flows, using both the IRAS images and the Point Source Catalog. Difficulties encountered in obtaining accurate luminosities from the IRAS data are discussed. The fluxes from 12 to 100 microns cannot be fitted by using dust at a single temperature. A two-temperature model is necessary for deriving the color corrections and luminosity. The sources not associated with visible stars have IRAS luminosities that range from 0.6 to 16 times the published luminosities, with a median value of two. This ratio is slightly larger for sources that are extended at the resolution of the IRAS images. The radial flux density distribution of the extended sources is examined. The warm component of the dust is not restricted to the center of the source, but permeates the entire cloud. The relationship between the strength of the flows and the luminosity of the associated sources is reexamined.
Mozurkewich David
Schwartz Phil R.
Smith Howard A.
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