A highly collimated outflow in the core of OMC-1

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0



Carbon Monoxide, Interstellar Matter, Jet Flow, Molecular Clouds, Nebulae, Pre-Main Sequence Stars, Gas Jets, H Ii Regions, Red Shift, Silicon Oxides

Scientific paper

The paper reports the discovery of a 120 arcsec long jet of CO in OMC-1. The feature, which is redshifted up to 15 km s-1 from the ambient CO gas, was presumably ejected from CS3/FIR4 60 arcsec southwest of the Trapezium and 110 arcsec south of IRc2. It might be related to a local bipolar source recently found there in SiO. The jet has very narrow width (not greater than 8 arcsec) and shows no sign of angular divergence; its axis is a straight line. The matter is accelerated all along, with the largest accelerations observed on the central axis. Lower velocity material envelops the high-speed core. Halfway along the jet, there is a sharp break at which the higher velocities terminate abruptly. Beyond the break, acceleration continues without change of direction or strength; the flow's final disappearance might be caused by accelerative dilution. The jet is probably denser than the ambient cloud; its temperature (about 45 K) approaches ambient values. Blueshifted emission of narrow lateral extent is seen over the full length of the redshifted jet.

No associations


Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.


A highly collimated outflow in the core of OMC-1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A highly collimated outflow in the core of OMC-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A highly collimated outflow in the core of OMC-1 will most certainly appreciate the feedback.

Rate now


Profile ID: LFWR-SCP-O-1302636

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.