Figure 1: Time evolution of 1D (thin gray lines) or 2D (thin orange lines) hydrodynamic simulation [138] of a 13 progenitor [117]. Thick lines in red (for 2D) and black (for 1D) show the position of shock waves, noting for 2D that the maximum (top) and average (bottom) shock position are shown. The red-dashed line represents the position of the gain radius, which is similar to the 1D case (not shown).