DENSE CLUMPS IN THE MONOCEROS R2 OUTFLOW

We present high-resolution CS and (CO)-C-13 observations of the centra l part of the Mon R2 outflow. We find that the accelerated gas is dist ributed in two opposed, highly fragmented, limb-brightened shells. The fragments in these shells correspond to clumps of gas that, although partaking in the outflow motion, have their own peculiar velocities. T he clumps appear in the spectra as secondary components, well separate d in velocity from the ambient line. They are as dense as the ambient cloud (few 10(5) cm-3), and each of them contains several M. of gas. F rom the clumps we directly observe, and from those whose presence we i nfer by the sudden changes in the shape of the spectra from one positi on to the other, we conclude that very likely most of-if not all-the g as in the Mon R2 outflow is in the form of dense clumps.