Star formation in clusters: early sub-clustering in the Serpens core
Astrophysics
2009-10-31 v1
Abstract
We present high resolution interferometric and single dish observations of molecular gas in the Serpens cluster-forming core. Star formation does not appear to be homogeneous throughout the core, but is localised in spatially- and kinematically-separated sub-clusters. The stellar (or proto-stellar) density in each of the sub-clusters is much higher than the mean for the entire Serpens cluster. This is the first observational evidence for the hierarchical fragmentation of proto-cluster cores suggested by cluster formation models.
Cite
@article{arxiv.astro-ph/0005522,
title = {Star formation in clusters: early sub-clustering in the Serpens core},
author = {L. Testi and A. I. Sargent and L. Olmi and J. S. Onello},
journal= {arXiv preprint arXiv:astro-ph/0005522},
year = {2009}
}
Comments
11 pages, 3 Figures, ApJ Letters in press