CONFIRMATION OF THE DRIVING SOURCE OF THE NGC-2264G BIPOLAR OUTFLOW -A CLASS-0 PROTOSTAR

Results are presented of a JCMT submillimetre continuum study of the r ecently discovered VLA source at the centre of the NGC 2264G bipolar o utflow, known as NGC 2264G-VLA2, which is coincident with the source I RAS 06384 + 0958. Submillimetre flux densities are listed, and the IRA S Calibrated Reconstructed Detector Data are analysed. A 100-mu m flux density, together with 12- and 25-mu m upper limits, is obtained for this source, which has only a 60-mu m flux density listed in the Point Source Catalog. The spectral energy distribution of the source is dis cussed, and various parameters derived. The circumstellar mass in a re gion of 0.007-pc diameter is found to be similar to 2-4., a bolometric luminosity of similar to 12 L. is derived, compared with a previous u pper limit for the region of 4.5 L. from a survey by Margulis and coll aborators which discounted this source as cirrus, and a submillimetre luminosity of similar to 0.3 L. is found. Thus the ratio of bolometric and submillimetre luminosities is similar to 40, and the source is se en to be consistent with a deeply embedded Class 0 protostar. The rati o of outflow mechanical luminosity to driving source luminosity is cal culated in the light of the new data.