New multiple systems in molecular clouds

Details New multiple systems in molecular clouds New multiple systems in molecular clouds

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...232l..47b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 232, Aug. 15, 1979, p. L47-L51.

Astronomy and Astrophysics

Astronomy

185

Astronomical Maps, Infrared Radiation, Interstellar Matter, Molecular Spectra, B Stars, H Ii Regions, Interstellar Masers, O Stars, Radio Sources (Astronomy), Star Clusters, Very Large Array (Vla)

Scientific paper

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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