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2000MNRAS.318..952D - Mon. Not. R. Astron. Soc., 318, 952-960 (2000/November-1)
Observations of a curving molecular outflow from V380Ori-NE: further support for prompt entrainment in protostellar outflows.
DAVIS C.J., DENT W.R.F., MATTHEWS H.E., COULSON I.M. and McCAUGHREAN M.J.
Abstract (from CDS):
We also find that both lobes of the CO outflow clearly deviate, by some 20°, from the H2 jet direction near the source. Both lobes may be being deflected at the locations of the observed H2 shock fronts, where they impact dense, ambient material. Alternatively, the almost point-symmetric CO flow pattern could be caused by precession at the source.
The submillimetre (submm) data reveal the source of the outflow, V380Ori-NE. The 450- and 850-µm maps show an elongated peak superimposed on to an extensive pedestal of weaker emission. The major axis of the source is oriented parallel with the inner flow axis. Indeed, weak 850-µm emission is detected along much of the bipolar outflow, particularly in the southern lobe and towards the southernmost CO intensity peak. The submm `continuum' data therefore probably trace warm dust and CO associated with the outflow. These data also confirm the status of V380Ori-NE as a Class I protostar.
Overall, the orientation, simplicity and symmetry of this outflow, combined with the remarkable strength of the high-velocity line-wing emission in comparison to the ambient emission, make this system a perfect laboratory for future detailed studies of bipolar molecular outflows and their association with collimated jets from young, deeply embedded protostars.
Abstract Copyright: 2000, Royal Astronomical Society
Journal keyword(s): circumstellar matter - ISM: individual: V380 Ori-NE - ISM: jets and outflows - ISM: kinematics and dynamics - infrared: ISM: lines and bands - infrared: stars
Nomenclature: Fig.1: [DDM2000] AN (Nos B1, R1-R2). Table 1, Fig.3: [DDM2000] WN (Nos N1-N4, S1-S4).
Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.
Simbad objects: 19
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