Radiation-Hydrodynamic Simulations of Collapse and Fragmentation in Massive Protostellar Cores

  title={Radiation-Hydrodynamic Simulations of Collapse and Fragmentation in Massive Protostellar Cores},
  author={Mark R. Krumholz and Richard Klein and Christopher F. McKee Princeton University and Lawrence Livermore National Laboratory and U. California Berkeley},
  journal={The Astrophysical Journal},
We simulate the early stages of the evolution of turbulent, virialized, high-mass protostellar cores, with primary attention to how cores fragment and whether they form a small or large number of protostars. Our simulations use the Orion adaptive mesh refinement code to follow the collapse from ~0.1 pc scales to ~10 AU scales, for durations that cover the main fragmentation phase, using three-dimensional gravito-radiation hydrodynamics. We find that for a wide range of initial conditions… 
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