A proposed origin for chondrule-forming shocks in the solar nebula
  We propose that the nebular shocks currently favored as a model to form chondrules and other annealed silicates in the solar nebula originate in the dynamical activity present in the envelope of forming Jovian planets. In contrast to the classic `core accretion model', our 3D hydrodynamic simulations show that this envelope is not a 1D hydrostatic structure but is instead vigorously active and contains densities and temperatures that appear similar in magnitude and spatial extent to those thought to be responsible for the production of chondrules. 
Andrew F. Nelson (1,2,3), Maximilian Ruffert (1) ((1) U of Edinburgh,   (2) Louisiana State University, Dept of Physics, (3)...