Delay-time distribution of the different channels with our standard model (Sect. 2): the SD_He channel (blue dash-dotted line), the SD_H channel (red dotted line), the DD channel (purple dashed line), and the overall SN Ia rate (black thin full line), which is the sum of the three channels. The rate is presented in units of SNuM which is the SN Ia rate per 100 yr per 10¹⁰ M_⊙ in stars. Data points represent the observed DTD from Totani et al. (2008, triangles) and Maoz et al. (2011, squares).