Far infrared, near infrared, and radio molecular line studies of HFE 2, HFE 3, and FJM 6

We describe far infrared, near infrared, and radio molecular line observations of the regions of HFE 2, HFE 3, and FJM 6. At positions of high molecular column density nearest to the reported positions of these sources, we were unable to confirm their infrared emission, 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 (13CO) = (3.7 +- 1.6) x 10-16 mag cm2. The gas temperature, and 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 region do not appear consistent with either cosmic ray or radiative heating