Sizes of Galactic Globular Clusters
Astrophysics of Galaxies
2015-06-03 v1 Cosmology and Nongalactic Astrophysics
Abstract
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.
Cite
@article{arxiv.1201.3597,
title = {Sizes of Galactic Globular Clusters},
author = {Sidney van den Bergh},
journal= {arXiv preprint arXiv:1201.3597},
year = {2015}
}
Comments
Accepted for publication in The Astrophysical Journal