Magnetic Towers and Binary-Formed Disks: New Results for PN Evolution
  We present new results of 3-D AMR MHD simulations focusing on two distinct aspects of PPN evolution. We first report new simulations of collimated outflows driven entirely by magnetic fields. These Poynting flux dominated "magnetic towers" hold promise for explaining key properties of PPN flows. Our simulations address magnetic tower evolution and stability. We also present results of a campaign of simulations to explore the development of accretion disks formed via wind capture. Our result focus on the limits of disk formation and the range of disk properties. 
Mart\'in Huarte-Espinosa and Adam Frank (University of Rochester)
astro-ph.SR