A New Approach to Identifying Massive Young Stellar Objects: Extended 4.5μm sources in the GLIMPSE survey

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Scientific paper

A new sample of massive young stellar object (MYSO) candidates has been identified by the presence of extended 4.5µm emission in GLIMPSE images, thought to trace shocked molecular gas in protostellar outflows. On average, the new MYSO candidates are significantly offset from the nearest IRAS source (1.5 arcminutes) and thus have not been previously identified. We will present images of selected candidates and comparisons with other tracers of molecular outflows and star formation activity.
C. Cyganowski is funded by a NSF Graduate Research Fellowship. Support for this work was provided by NSF grant AST-0303689, NASA contract NASA-1275394, and by the NSF through award GSSP 07-0008 from the NRAO.

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