Wednesday, January 18, 2012

1201.3597 (Sidney van den Bergh)

Sizes of Galactic Globular Clusters    [PDF]

Sidney van den Bergh
A study is made of deviations from the mean power-law relationship between the Galactocentric distances and the half-light radii of Galactic globular clusters. Surprisingly, deviations from the mean R_h versus R_gc relationship do not appear to correlate with cluster luminosity, cluster metallicity, or horizontal branch morphology. Differences in orbit shape are found to contribute to the scatter in the R_h versus R_gc relationship of Galactic globular clusters.
View original: http://arxiv.org/abs/1201.3597

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