2D distributions of entropy and silicon of LC15 model ( n _θ = 128). Entropy in unit of k _B baryon ⁻¹ is in the left half of the sphere and the silicon mass fraction is in the right half. Shown is the case of ( L _{ν0, 52}, t _d ) = (2.4, 1.1) at t _pb = 100 (left panel) and 200 ms (right) postbounce, respectively.