Far-infrared and radio observations of DR 6, DR 7, and DR 22

Details Far-infrared and radio observations of DR 6, DR 7, and DR 22 Far-infrared and radio observations of DR 6, DR 7, and DR 22

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306..122o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 1, 1986, p. 122-129. Research supported by the Colby College and

Astronomy and Astrophysics

Astronomy

16

Astronomical Maps, Early Stars, Far Infrared Radiation, Radio Sources (Astronomy), Radio Spectra, B Stars, Cosmic Dust, H Ii Regions, Infrared Spectra, Molecular Clouds, O Stars, Optical Thickness, Temperature Distribution

Scientific paper

Far-infrared maps are presented for three young H II regions in the Cygnus X region. DR 6 and 7 were mapped in the wavelength band from 40 to 250 microns at 1 arcmin resolution, while DR 22 was mapped in the same band and also at 100-250 microns, providing dust temperature and optical depth information. New VLA maps of these sources are also presented. It is concluded that DR 6 and 7 are powered by clusters of late O or early B type stars, with ages 100,000 yr or less, while DR 22 appears to be produced by a single O6 ZAMS star. Existing (C-12)O maps suggest that the formation of these objects occurred near the edges of molecular clouds.

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