NASA NTRS · 19790065680
New multiple systems in molecular clouds
Abstract
Twenty-micron searches of the dense cores of the molecular clouds S140, S255, and Cepheus A have revealed the existence of multiple sources of infrared radiation which seem to be precursors to Trapezium-like clusters of OB stars. Two of the new sources are extended with unusually low color temperatures, less than 100 K. Observations with the Very Large Array with 1 mJy sensitivity have shown that three and possibly four of the infrared sources are associated with small H II regions. Multiple systems appear to be the rule rather than the exception in molecular clouds.
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Beichman, C. A., Becklin, E. E., Wynn-Williams, C. G.. 1979-08-15. New multiple systems in molecular clouds. https://ntrs.nasa.gov/citations/19790065680
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