 100  1000  10000  100000  1e+06  1e+07  1e+09  1e+10 density [g/cc] r [cm] 0 [s] = 1 [s] = 2 [s] = 3 [s] 4 [s] [s] = 6 [s] = 7 [s] MeV 10 MeV 20 MeV 40 MeV 60 FIG. 1: The density profiles as a function of radius for every 1 second from 0 to 7 seconds after the core bounce. The horizontal lines show the density at the H-resonance point of each neutrino energy. 27