The formation of a bound star cluster: from the orion nebula cluster to the pleiades

  title={The formation of a bound star cluster: from the orion nebula cluster to the pleiades},
  author={P. Kroupa and S. Aarseth and J. Hurley},
  journal={Monthly Notices of the Royal Astronomical Society},
Summary Direct N-body calculations are presented of the formation of Galactic clusters using GasEx, which is a variant of the code Nbody6. The calculations focus on the possible evolution of the Orion Nebula Cluster (ONC) by assuming that the embedded OB stars explosively drove out 2/3 of its mass in the form of gas about 0.4 Myr ago. A bound cluster forms readily and survives for 150 Myr despite additional mass loss from the large number of massive stars, and the Galactic tidal field. This is… Expand
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