Hydrodynamic simulations of the interaction of supernova shock waves   with a clumpy environment: the case of the RX J0852.0-4622 (Vela Jr)   supernova remnant
  Observations in all electromagnetic bands show that many supernova remnants (SNRs) have a very aspherical shape. This can be the result of asymmetries in the supernova explosion or a clumpy circumstellar medium. We study the generation of inhomogeneities and the mixing of elements arising from these two sources in multidimensional hydrodynamic simulations of the propagation of a supernova blast wave into a cloudy environment. We model a specific SNR, Vela Jr (RX J0852.0-4622). By comparing our results with recent observations, we can constrain the properties of the explosion. We find that a very energetic explosion of several 10^{51} erg occurring roughly about 800 years ago is consistent with the shape and emission of the SNR, as well as a supernova with an energy closer to the canonical value of 10^{51} erg a few thousand years ago. 
M. Obergaulinger (Univ. Valencia), A. Iyudin (Lomonosov Moscow State   University, MPE, Garching), E. M\"uller (MPA, Garchin...
astro-ph.SR astro-ph.HE