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2012MNRAS.422.1592L - Mon. Not. R. Astron. Soc., 422, 1592-1600 (2012/May-2)
Quantifying the universality of the stellar initial mass function in old star clusters.
LEIGH N., UMBREIT S., SILLS A., KNIGGE C., DE MARCHI G., GLEBBEEK E. and SARAJEDINI A.
Abstract (from CDS):
We show that the present-day mass functions of the clusters in our sample can be reproduced by assuming a universal initial mass function for all clusters, and that the cluster-to-cluster differences are consistent with what is expected from two-body relaxation. A more complete exploration of the initial cluster conditions will be needed in future studies to better constrain the precise functional form of the initial mass function. This study is a first step towards using our technique to constrain the dynamical histories of a large sample of old Galactic star clusters and, by extension, star formation in the early Universe.
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS
Journal keyword(s): methods: statistical - stars: formation - stars: low-mass - stars: statistics - globular clusters: general
Simbad objects: 32
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