The Complex Mid-Infrared Structure at the Heart of IRAS 20126+4104

The mid-infrared emission at the center of IRAS 21026+4104 is not that of a simple compact source, as one would expect from an isolated high-mass protostellar object. Furthermore, the central thermal infrared emission does not appear to be coming directly from a circumstellar disk as has been recent...

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Bibliographic Details
Published in:The Astrophysical journal 2007-01, Vol.654 (2), p.L147-L150
Main Author: De Buizer, James M
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
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Summary:The mid-infrared emission at the center of IRAS 21026+4104 is not that of a simple compact source, as one would expect from an isolated high-mass protostellar object. Furthermore, the central thermal infrared emission does not appear to be coming directly from a circumstellar disk as has been recently hypothesized from near-infrared observations. The mid-infrared structure is complex, but with the help of multiple-wavelength information two plausible scenarios to explain the emission in the region are advanced. The first is that there is a tight cluster of young stellar objects here. The second is that the mid-infrared emission and masers are delineating the walls of the outflow cavities of a massive stellar source located in the center of the near- and mid-infrared dark lane.
ISSN:1538-4357
0004-637X
1538-4357
DOI:10.1086/511263