Population synthesis of wide binary millisecond pulsars

摘要: Four evolutionary channels leading to the formation of wide binary millisecond pulsars are investigated. The majority found descend from systems in which most massive component undergoes a common-envelope phase prior supernova explosion birth neutron star. The orbital period distribution simulated samples is compared with observed Galactic for variety parameters describing and evolution binaries. functions typically show short-period peak below 10 d long-period around 100 d. best reproduced by models highly non-conservative mass transfer, efficiencies equal or larger than unity, critical ratio delayed dynamical instability 3, no moderate kicks at star. Few periods longer 200 d, irrespective accretion efficiency stars. This occurs as result upper limit on initial beyond avoids primary.