Confirmation of the driving source of the NGC 2264G bipolar outflow: a Class 0 protostar

Details Confirmation of the driving source of the NGC 2264G bipolar outflow: a Class 0 protostar Confirmation of the driving source of the NGC 2264G bipolar outflow: a Class 0 protostar

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.273l..25w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 273, Issue 2, pp. L25-L28.

Astronomy and Astrophysics

Astronomy

15

Stars: Formation, Dust, Extinction

Scientific paper

Results are presented of a JCMT submillimetre continuum study of the recently discovered VLA source at the centre of the NGC 2264G bipolar outflow, known as NGC 2264G-VLA2, which is coincident with the source IRAS 06384+0958. Submillimetre flux densities are listed, and the IRAS Calibrated Reconstructed Detector Data are analysed. A 100-μm flux density, together with 12-and 25-μm upper limits, is obtained for this source, which has only a 60-μm flux density listed in the Point Source Catalog. The spectral energy distribution of the source is discussed, and various parameters derived. The circumstellar mass in a region of 0.07-pc diameter is found to be ~2-4 M_solar, a bolometric luminosity of ~12 L_solar is derived, compared with a previous upper limit for the region of 4.5 L_solar from a survey by Margulis and collaborators which discounted this source as cirrus, and a submillimetre luminosity of ~0.3 L_solar is found. Thus the ratio of bolometric and submillimetre luminosities is ~40, and the source is seen to be consistent with a deeply embedded Class 0 protostar. The ratio of outflow mechanical luminosity to driving source luminosity is calculated in the light of the new data.

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