%0 Journal Article %T Star Cluster Ecology I: A Cluster Core with Encounters between Single Stars %A Simon F. Portegies Zwart %A Piet Hut %A Frank Verbunt %J Physics %D 1997 %I arXiv %X Star clusters with a high central density contain an ecological network of evolving binaries, affected by interactions with passing stars, while in turn affecting the energy budget of the cluster as a whole by giving off binding energy. This is the first paper in a series aimed at providing the tools for increasingly realistic simulations of these ecological networks. %U http://arxiv.org/abs/astro-ph/9701042v1