A high resolution millimetre and submillimetre study of W3

Details A high resolution millimetre and submillimetre study of W3 A high resolution millimetre and submillimetre study of W3

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...221...95r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 221, no. 1, Aug. 1989, p. 95-99. Research supported by SERC.

Astronomy and Astrophysics

Astronomy

20

H Ii Regions, Millimeter Waves, Molecular Clouds, Star Formation, Submillimeter Waves, Astronomical Maps, Bolometers, Cosmic Dust, Infrared Sources (Astronomy), Telescopes

Scientific paper

The continuum bolometer receiver on the James Clerk Maxwell telescope has been used to map the dense core of the star formation region W3 with a spatial resolution of 15-20 arcsec. At 350 and 800 microns, the region appears as two principal peaks around the known IR sources IRS4 and IRS5, while at 1100 microns, a further peak is noted which is interpreted as being due to free-free emission around IRS2. Taking into account the free-free contribution to the intensity, the continuum dust emission from the region is found to be consistent with optically thin emission at all of the three wavelengths considered. Values for the dust optical depth, hydrogen column density, mass, and central density have been obtained for each of the main peaks.

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