Far infrared maps of the ridge between OMC-1 and OMC-2

Details Far infrared maps of the ridge between OMC-1 and OMC-2 Far infrared maps of the ridge between OMC-1 and OMC-2

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979cuil.rept.....k&link_type=abstract

Final Technical Report Chicago Univ., IL.

Physics

Cosmic Dust, Emission, Far Infrared Radiation, Maps, Nebulae, Flux Density, Graphs (Charts), Heating, Photometry, Resolution, Temperature Distribution

Scientific paper

Dust continuum emission from a 6 ft x 20 ft region surrounding OMC-1 and OMC-2 were mapped at 55 and 125 microns with 4 ft resolution. The dominant features of the maps are a strong peak at OMC-1 and a ridge of lower surface brightness between OMC-1 and OMC-2. Along the ridge the infrared flux densities and the color temperature decreases smoothly from OMC-1 to OMC-2. OMC-1 is heated primarily by several optical and infrared stars situated within or just at the boundary of the cloud. At the region of minimum column density between OMC-1 and OMC-2 the nearby B0.5 V star NU Ori may contribute significantly to the dust heating. Near OMC-2 dust column densities are large enough so that, in addition to the OMC-2 infrared cluster, the nonlocal infrared sources associated with OMC-1 and NU Ori can contribute to the heating.

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