Figure 4: Time evolution of the explosion energy versus postbounce time for 2D models with and without rotation (a). The explosion energy is defined as the total energy (internal plus kinetic plus gravitational), integrated overall matter where the sum of the corresponding specific energies is positive. Models with “-hr” indicate the ones with higher numerical resolution, in which the mesh numbers in the lateral direction are doubled. (b) are snapshots of the density (left half) and the entropy (right half) for 1D (left) and 2D rotating (right) models at the epoch when the shock reaches 1000 km. These figures are taken from [138].