Massive molecular outflows
Abstract
We present a mapping study of massive molecular outflows in 26 high-mass star-forming regions at 11'' spatial resolution. Bipolar morpholgy is found in 80% of the sources and the collimation is higher than previously thought. Additionally, we find that well known low-mass correlations continue up to the high-mass regime, and accretion rates are around 10^(-4) Msun/yr rising as high as 10^(-3) Msun/yr. A tight correlation between the outflow and the core mass is established, implying that the accretion rate is a rather linear function of the initial core mass. All the data suggest that massive outflows are qualitatively similar and just quantitatively enhanced compared to their low mass counterparts.
Cite
@article{arxiv.astro-ph/0112508,
title = {Massive molecular outflows},
author = {H. Beuther and P. Schilke and T. K. Sridharan and K. M. Menten and C. M. Walmsley and F. Wyrwoski},
journal= {arXiv preprint arXiv:astro-ph/0112508},
year = {2007}
}
Comments
13 pages, 7figures, accepted for Astronomy and Astrophysics