Mass segregation in the young open cluster NGC 2547
Astrophysics
2009-11-10 v1
Abstract
We present a study of mass segregation of the young (20-35 Myr isochronal age), open cluster NGC 2547. We find good evidence that mass segregation exists in NGC 2547 down to 3 Msun, and weak evidence for mass segregation down to 1 Msun. Theoretical models of an initially unsegregated model of NGC 2547 using the NBODY2 code show weaker mass segregation, implying that at least some of the observed mass segregation has a primordial origin. We also report the discovery of three possible escaped cluster members, which share the proper motion and colours of the cluster, but lie nearly a degree from the cluster centre.
Cite
@article{arxiv.astro-ph/0308320,
title = {Mass segregation in the young open cluster NGC 2547},
author = {S. P. Littlefair and Tim Naylor and R. D. Jeffries and C. R. Devey and S. Vine},
journal= {arXiv preprint arXiv:astro-ph/0308320},
year = {2009}
}
Comments
7 pages, 7 figures. To appear in Monthly Notices (in press)