Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984stin...8512835h&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Interstellar Masers, Nebulae, Star Clusters, Carbon Monoxide, H Ii Regions, Infrared Astronomy, Main Sequence Stars, Radio Sources (Astronomy), Stellar Luminosity
Scientific paper
Infrared observations from 1 to 100 microns are presented for the region associated with a bipolar CO outflow source near the nebulous objects GGD 12 to 15. A luminous far-infrared source was found associated with a radio-continuum source in the area. This object appears to be a compact HII region around a nearly main-sequence BO star. A faint 20 micron source was also discovered at the position of an H2O maser 3O deg northwest of the HII region. This object appears to be associated with but not coincident with a 2 micron reflection nebula. This structure serves as evidence for a non-spherically symmetric, possibly disk-like dust distribution around the exciting star for the maser. This object probably powers the bi-polar CO outflow although its luminosity is less than 10% that of the star which excites the compact HII region. A number of other 2 micron sources found in the area are probably members of a recently formed cluster.
Harvey Paul Michael
Joy Marhshall
Lester Dan F.
Wilking Bruce A.
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