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Molecular clouds and star formation in the inner galaxy - A comparison of CO, H II, and far-infrared surveysSurveys of the galactic plane over galactic latitudes from -1 degree to +1 degree and galactic longitudes from 12 degrees to 60 degrees are compared in the CO line at 2.6 mm, in the far-infrared (FIR) continuum at 150 micrometers and 250 micrometers, and in the radio continuum and H 110-alpha recombination line at 6 cm. The main purposes are to determine the degree of association between FIR sources, H II regions, and molecular clouds in the first quadrant and to describe and analyze the stellar content of these molecular clouds. Among the conclusions it is noted that most FIR sources coincide with HII regions, and nearly all H II regions coincide with molecular clouds, and that clouds in the inner galaxy are probably several tens of millions of years old and may have been producing O stars for only about the most recent 20 percent of their lives.
Document ID
19860044809
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Myers, P. C.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Dame, T. M.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Thaddeus, P.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Cohen, R. S.
(NASA Goddard Institute for Space Studies New York, United States)
Silverberg, R. F.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Dwek, E.
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Hauser, M. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1986
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 301
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
86A29547
Distribution Limits
Public
Copyright
Other

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