• Collapsar accretion and the gamma-ray burst X-ray light curve 

    Lindner, Christopher Carl (2010-11-02)
    We present axisymmetric hydrodynamical simulations of the long-term accretion of a rotating gamma-ray burst progenitor star, a "collapsar," onto the central compact object, which we take to be a black hole. The simulations ...
  • Multidimensional multiscale dynamics of high-energy astrophysical flows 

    Couch, Sean Michael (2010-11-23)
    Astrophysical flows have an enormous dynamic range of relevant length scales. The physics occurring on the smallest scales often influences the physics of the largest scales, and vice versa. I present a detailed study ...