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Far infrared, near infrared, and radio molecular line studies of HFE 2, HFE 3, and FJM 6Far-infrared, near-infrared, and radio molecular-line observations of the regions of HFE 2, HFE 3, and FJM 6 are described. At positions of high molecular column density nearest to the reported positions of these sources, their infrared emission cannot be confirmed at upper bounds below those of the original detection. Near-infrared observations of the FJM 6 region (which includes the Bok globule Barnard 361) reveal a number of stellar sources, most of which are behind the molecular cloud and are reddened by it. Visual extinction through B 361 estimated by star counts yields A sub V/N(/C-13/O) = 3.7 + or - 1.6) x 10 to the -16th mag sq cm. The gas temperature and the upper bound on the dust temperature in the FJM 6 region are consistent with cosmic-ray heating of the cloud, while the values of these parameters for the clouds in the HFE 2 and HFE 3 regions do not appear consistent with either cosmic-ray or radiative heating.
Document ID
19800027319
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Fischer, J.
(New York, State University Stony Brook, N.Y., United States)
Cassar, L.
(U.S. Merchant Marine Academy Kings Point, N.Y., United States)
Righini-Cohen, G.
(State Univ. of New York Stony Brook, NY, United States)
Simon, M.
(State Univ. of New York Stony Brook, NY, United States)
Date Acquired
August 10, 2013
Publication Date
October 1, 1979
Publication Information
Publication: Astronomical Journal
Volume: 84
Subject Category
Astronomy
Accession Number
80A11489
Funding Number(s)
CONTRACT_GRANT: NATO-1100
CONTRACT_GRANT: NSG-2264
CONTRACT_GRANT: NSF MPS-73-04554
CONTRACT_GRANT: NSG-2173
Distribution Limits
Public
Copyright
Other

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