Mass segregation in the young open cluster NGC 2547

Details Mass segregation in the young open cluster NGC 2547 Mass segregation in the young open cluster NGC 2547

2003-08-19

arxiv.org/abs/astro-ph/0308320v1

Mon.Not.Roy.Astron.Soc.345:1205,2003

Astronomy and Astrophysics

Astrophysics

7 pages, 7 figures. To appear in Monthly Notices (in press)

Scientific paper

10.1046/j.1365-2966.2003.07035.x

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.

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