BPS results of CO WD+He-rich WD systems in the M_WD1−M_WD2 plane, where M_WD1 and M_WD2 are the merging mass of the CO WD and He-rich WD, respectively. Here, α_CE is set to be 1. The contours with the solid and dashed line represent the region of the parameter space for producing SNe Ia given by Dan et al. (2012), in which the individual particle temperature T and the SPH-smoothed temperature ⟨ T ⟩ are adopted, respectively.