The large-scale far-infrared structure of W3 and W4

Details The large-scale far-infrared structure of W3 and W4 The large-scale far-infrared structure of W3 and W4

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...239..533t&link_type=abstract

Astrophysical Journal, Part 1, vol. 239, July 15, 1980, p. 533-539.

Astronomy and Astrophysics

Astronomy

18

Astronomical Spectroscopy, Infrared Astronomy, Nebulae, Astronomical Maps, Carbon Monoxide, Emission Spectra, Far Infrared Radiation, H Ii Regions

Scientific paper

The large-scale structure of the giant H II region complex W3/W4 has been mapped in two wavelength bands covering 60 to 120 microns at an angular resolution of 12 arc min. The only region of strong emission observed lies along a molecular ridge at an ionization/shock front in the sources. This structure supports the idea that a new generation of stars formed after neutral material ahead of the front became gravitationally unstable. These embedded stars are dominating the energetics of the molecular/infrared cloud, although the visible OCl 352 cluster in neighboring IC 1805 may supply much of the heating flux to the fainter regions. A simple model relating the far-infrared and CO emission is presented.

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