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arXiv · astro-ph/0308320

Mass segregation in the young open cluster NGC 2547

S. P. Littlefair·Tim Naylor·R. D. Jeffries·C. R. Devey·S. Vine
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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.

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S. P. Littlefair, Tim Naylor, R. D. Jeffries, C. R. Devey, S. Vine. 2003-08-19. Mass segregation in the young open cluster NGC 2547. https://doi.org/10.1046/j.1365-2966.2003.07035.x

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