Evolution of massive close binaries. IV - Evolution of a 10-solar-mass plus 8-solar mass system into a system with a white dwarf component

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Binary Stars, Stellar Evolution, Stellar Mass, White Dwarf Stars, Carbon, Computerized Simulation, Helium, Mass Transfer, Neutrinos, Nuclear Fusion

Scientific paper

The evolution of a binary system with components of 10 and 8 solar masses is computed through case B of mass exchange. It is found that after the end of core helium burning, a second stage of mass transfer from the primary occurs. Carbon ignition is prohibited by the large neutrino losses in the degenerate core. The primary remnant, a 1.12-solar-mass star, ends as a white dwarf. A comparison with the 10-solar-mass single evolution is made.

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