Open AccessMass segregation in the young open cluster NGC 2547
Author(s) -
Littlefair S. P.,
Naylor Tim,
Jeffries R. D.,
Devey C. R.,
Vine S.
Publication year - 2003
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-2966.2003.07035.x
Subject(s) - physics , cluster (spacecraft) , open cluster , astrophysics , mass segregation , stars , computer science , programming language
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 M ⊙ , and weak evidence for mass segregation down to 1 M ⊙ . 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.