Journal article
Stellar populations in globular cluster cores: evidence for a peculiar trend among red giant branch stars
Abstract
Abstract We investigate the relationship between the mass of a globular cluster core and the sizes of its various stellar populations in a sample of 56 globular clusters. The number of core red giant branch stars is found to scale sub-linearly with core mass at the 3σ confidence level, whereas the relation is linear to within one standard deviation for main-sequence turn-off (MSTO) and sub-giant branch stars. We interpret our results as …
Authors
Leigh N; Sills A; Knigge C
Journal
Monthly Notices of the Royal Astronomical Society: Letters, Vol. 399, No. 1, pp. l179–l183
Publisher
Oxford University Press (OUP)
Publication Date
October 1, 2009
DOI
10.1111/j.1745-3933.2009.00749.x
ISSN
1745-3925