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Paper: Very Young Intermediate and High Mass Star Forming Regions Discovered by the ISOPHOT Serendipity Survey
Volume: 287, Galactic Star Formation Across the Stellar Mass Spectrum
Page: 174
Authors: Krause, O.; Lemke, D.; Vavrek, R.; Tóth, L. V.; Stickel, M.; Klaas, U.
Abstract: We report results from the search for very young intermediate and high mass star forming regions using the 170 μm ISOPHOT Serendipity Survey (ISOSS). The sample of candidates consists of cold ISOSS sources coinciding with embedded young stellar objects detected by the MSX mid-infrared survey. The low temperature and large mass of the ISM in these objects, which has not been dispersed, suggests a recent beginning to the ongoing star formation. In order to explore the early evolutionary stage of these objects, follow-up campaigns have been initiated. While the combination of our ISOPHOT far-infrared photometry and SCUBA continuum measurements at sub-millimeter wavelengths allows the detailed study of morphology and properties of the dust components, optical and infrared observations were targeted on the embedded (proto)stellar population. Our approach of multi-wavelength characterization is demonstrated for the newly discovered object ISOSS J 20298+3559. The observations reveal the presence of a dense molecular cloud core with a total mass of 200 M and an average temperature as low as 16 K. Several dust condensations without infrared counterparts were found in coexistence with a luminous Herbig B2 star.
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