Journal article
Dynamical age differences among coeval star clusters as revealed by blue stragglers
Abstract
Globular clusters can be grouped into a few distinct families on the basis of the radial distribution of ‘blue stragglers’, stars with masses greater than those at the turn-off point on the main sequence; this grouping can yield a direct measure of the cluster’s dynamical age purely from observed properties.
Authors
Ferraro FR; Lanzoni B; Dalessandro E; Beccari G; Pasquato M; Miocchi P; Rood RT; Sigurdsson S; Sills A; Vesperini E
Journal
Nature, Vol. 492, No. 7429, pp. 393–395
Publisher
Springer Nature
Publication Date
December 2012
DOI
10.1038/nature11686
ISSN
0028-0836