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On the redistribution of OB star luminosity and the warming of nearby molecular cloudsIRAS observations of the neighborhoods of six H II regions in the outer Galaxy are correlated with CO maps of the same regions. It is found that more than half of the far-IR luminosity from within about 25 to 75 pc of the ionizing stars is contributed by dust associated with molecular clouds. It is shown that a major and increasing fraction of the OB cluster starlight is not absorbed locally. The observations suggest that the H II regions are not radiation-bounded and have ion densities of about 1/cu cm. A model describing the interstellar environment of OB star clusters as a function of time is presented.
Document ID
19880066126
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Leisawitz, D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hauser, M. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
September 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 332
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
88A53353
Distribution Limits
Public
Copyright
Other

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