Wolf-Rayet stars, black holes and the first detected gravitational wave sourceстатья
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Аннотация:The recently discovered burst of gravitational waves GW150914 provides a good new chance to verify the
current view on the evolution of close binary stars. Modern population synthesis codes help to study this
evolution from two main sequence stars up to the formation of two final remnant degenerate dwarfs,
neutron stars or black holes (Masevich and Tutukov, 1988). To study the evolution of the GW150914 pre-
decessor we use the “Scenario Machine” code presented by Lipunov et al. (1996). The scenario modeling
conducted in this study allowed to describe the evolution of systems for which the final stage is a mas-
sive BH+BH merger. We find that the initial mass of the primary component can be 100 ÷ 140 Msun and
the initial separation of the components can be 50 ÷ 350 Rsun . Our calculations show the plausibility of
modern evolutionary scenarios for binary stars and the population synthesis modeling based on it.