Theoretical Delay Time Distributions
  We briefly discuss the method of population synthesis to calculate theoretical delay time distributions of type Ia supernova progenitors. We also compare the results of the different research groups and conclude that although one of the main differences in the results for single degenerate progenitors is the retention efficiency with which accreted hydrogen is added to the white dwarf core, this cannot explain all the differences. 
Gijs Nelemans, Silvia Toonen, Madelon Bours
astro-ph.HE astro-ph.SR