Instabilities and Clumping in Type Ia Supernova Remnants

  title={Instabilities and Clumping in Type Ia Supernova Remnants},
  author={Chih-Yueh Wang and Roger A. Chevalier},
  journal={The Astrophysical Journal},
We present two-dimensional high-resolution hydrodynamical simulations in spherical polar coordinates of a Type Ia supernova interacting with a constant-density interstellar medium. The ejecta are assumed to be freely expanding with an exponential density profile. The interaction gives rise to a double-shocked structure susceptible to hydrodynamical instabilities. The Rayleigh-Taylor instability initially grows, but the Kelvin-Helmholtz instability takes over, producing vortex rings. Provided… 

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