Sizes of Galactic Globular Clusters

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.

Accepted for publication in The Astrophysical Journal

References in corpus (2)

• Some Systematics of Galactic Globular Clusters
• The Milky Way and other spiral galaxies

Cited by in corpus (6)

• Star count density profiles and structural parameters of 26 Galactic globular clusters
• Statistics of the structure components in S0s: implications for bar induced secular evolution
• The effect of primordial mass segregation on the size scale of globular clusters
• The accretion history of the Milky Way. I. How it shapes globular clusters and dwarf galaxies
• G2C2-III: Structural parameters for Galactic globular clusters in SDSS passbands
• The Sizes of Globular Clusters as Tracers of Galactic Halo Potentials