Three-dimensional hydrodynamic instabilities in stellar core collapses

  title={Three-dimensional hydrodynamic instabilities in stellar core collapses},
  author={Yu-qing Lou and Biao Lian},
  journal={Monthly Notices of the Royal Astronomical Society},
  • Y. Lou, Biao Lian
  • Published 12 November 2011
  • Physics
  • Monthly Notices of the Royal Astronomical Society
A spherically symmetric hydrodynamic stellar core collapse process under gravity is time-dependent and may become unstable once disturbed. Subsequent non-linear evolutions of such growth of hydrodynamic instabilities may lead to various physical consequences. Specifically for a homologous collapse of a stellar core characterized by a polytropic exponent Γ= 4/3, we examine oscillations and/or instabilities of three-dimensional (3D) general polytropic perturbations. Being incompressible, the… 

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