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Session 108 - HII Regions.
Display session, Thursday, January 18
North Banquet Hall, Convention Center

[108.09] 350 Micron Imaging of Ultracompact HII Regions with the CSO Bolometer Array (SHARC)

T. R. Hunter, D. C. Lis, N. Wang, T. G. Phillips (California Institute of Technology)

We present diffraction-limited 350 \mum images of ultracompact HII regions (UCHIIs) obtained at the Caltech Submillimeter Observatory during engineering observations with our new 24-pixel bolometer array camera (SHARC) built in collaboration with the Goddard Space Flight Center. With a beamsize of 10'', our images show that the 350 \mum emission from these sources is generally quite compact. We combine our submillimeter fluxes with IRAS fluxes from a HiRes survey of UCHIIs and estimate the dust temperature, luminosity and mass of these regions. We also present CO J=3\rightarrow2 maps of molecular outflows emerging from several of these active sources including K3-50, G138.30+1.56, and G240.31+0.07.

Program listing for Thursday