Evolution of the number of accreting white dwarfs with shell nuclear burning and the SNe Ia rate
作者： L. R. Yungelson
DOI: 10.1134/S1063773710110034
关键词: Future of an expanding universe 、 Physics 、 White dwarf 、 Blue dwarf 、 Massive compact halo object 、 Black dwarf 、 Chandrasekhar limit 、 Stellar classification 、 Astronomy 、 Astrophysics 、 Stellar evolution
摘要: We analyze the time evolution of number accreting white dwarfs with surface shell hydrogen burning in semidetached and detached binaries. consider case where continuous star formation a constant rate takes place stellar system over 1010 Gyr starburst which same mass stars is formed 109 Gyr. The compared events that are usually considered as SNe Ia and/or accretion-induced collapses, i.e., accumulation Chandrasekhar by or merger dwarf pairs total greater than equal to one. In systems starburst, supersoft X-ray sources observed at t = yr most likely not progenitors Ia. true for significant fraction rate. both cases, dominant mechanism symbiotic binaries, CO do accumulate enough an explosion, while ONeMg finish their accretion-induce collapse neutron star.
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