A Dynamical Model for the Globular Cluster G1

  title={A Dynamical Model for the Globular Cluster G1},
  author={Holger Baumgardt and Junichiro Makino and Piet Hut and Stephen L. W. McMillan and Simon Portegies Zwart},
  journal={The Astrophysical Journal},
We present a comparison between the observational data on the kinematical structure of G1 in M31, obtained with the Hubble Space Telescope Wide Field Planetary Camera 2 and Space Telescope Imaging Spectrograph instruments, and the results of dynamical simulations carried out using the special purpose computer GRAPE-6. We have obtained good fits for models starting from single-cluster King model initial conditions and even better fits when starting our simulations with a dynamically constructed… Expand

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