Presupernova Evolution in Massive Interacting Binaries

摘要: The way in which binary interaction affects the presupernova evolution of massive close binaries and resulting supernova explosions is investigated systematically by means a Henyey-type stellar code that was modified to allow its application calculations. makes it possible trace effects mass angular momentum loss from binary, as well transfer within system. It found large number scenarios can be distinguished, depending on type evolutionary stage progenitor at time interaction. Monte Carlo simulations are performed estimate frequencies occurrence various scenarios. that, because previous interaction, 15-30 percent all stars (with initial masses greater than about 8 solar masses) become helium stars, another 5 end their lives blue supergiants rather red supergiants.