The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters

  title={The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters},
  author={Ryan Goldsbury and Harvey B. Richer and Jay Anderson and Aaron Dotter and Ata Sarajedini and Kristin A. Woodley},
  journal={arXiv: Astrophysics of Galaxies},
We present new measurements of the centers for 65 Milky Way globular clusters. Centers were determined by fitting ellipses to the density distribution within the inner $2\arcmin$ of the cluster center, and averaging the centers of these ellipses. The symmetry of clusters was also analyzed by comparing cumulative radial distributions on opposite sides of the cluster across a grid of trial centers. All of the determinations were done with stellar positions derived from a combination of two single… Expand

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