Next generation population synthesis of accreting white dwarfs – I. Hybrid calculations using bse + mesa

摘要: Accreting, nuclear-burning white dwarfs (WDs) have been deemed to be candidate progenitors of Type Ia supernovae (SNe Ia), and account for supersoft X-ray sources, novae, etc. depending on their accretion rates. We carried out a binary population synthesis study populations using two algorithms. In the first, we use code BSE as baseline 'rapid' approach commonly used in such studies. second, employ 'hybrid' approach, which generate WDs with non-degenerate companions verge filling Roche lobes. then follow mass transfer phase detailed stellar evolution MESA. investigate number rapidly accreting (RAWDs) stably (SNBWDs), estimate SNe rate produced by 'single degenerate' (SD) systems. find significant differences between algorithms predicted numbers SNBWDs at early times, also delay time distribution (DTD) SD Ia. Such treatment may partially DTD found different groups. Adopting 100 per cent efficiency helium burning, channel Milky Way-like galaxy our calculations is 2.0 x 10(-4) yr(-1), more than an order magnitude below observationally inferred value. agreement previous studies, calculated inconsistent observations.