Embedded sources in L 1688 (van Kempen+, 2009)

Physics

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Molecular Clouds, Millimetric/Submm Sources

Scientific paper

Spectral maps of the HCO+ J=4-3 and C18O J=3-2 l HARP-B array on the James Clerk Maxwell Telescope and SCUBA 850um dust maps, are obtained of all sources in the L 1688 region with infrared spectral slopes consistent with, or close to, that of embedded YSOs. Selected 350um maps obtained with the Caltech Submillimeter Observatory are presented as well. The properties, extent and variation of dense gas, column density and dust up to 1' (~7500AU) are probed at 15" resolution. Using the spatial variation of the gas and dust, together with the intensity of the HCO+ J=4-3 line, we are able to accurately identify the truly embedded YSOs and determine their properties.
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