Effects of Tidal Shocks on the Evolution of Globular Clusters

  title={Effects of Tidal Shocks on the Evolution of Globular Clusters},
  author={Oleg Y. Gnedin and Hyung-Mok Lee and Jeremiah P. Ostriker},
  journal={The Astrophysical Journal},
  pages={935 - 949}
We present new Fokker-Planck models of the evolution of globular clusters, including gravitational tidal shocks. We extend our calculations beyond the core collapse by adopting three-body binary heating. Effects of the shocks are included by adding the tidal shock diffusion coefficients to the ordinary Fokker-Planck equation: the first-order heating term, ⟨ΔE⟩, and the second-order energy dispersion term, ⟨ΔE2⟩. As an example, we investigate the evolution of models for the globular cluster NGC… 

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