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- W1937242308 abstract "We use Scenario Machine -- the population synthesis simulator -- to calculate the evolution of populations of selected types of X-ray sources after a starformation burst with the total mass in binaries (1--1.5) cdot 10^6 M_{odot}$ during the first 20 Myr after a burst. We present here the results of two sets of runs of the program. In the first set we examined the following types of close binaries: transient sources-- neutron stars with Be- stars; ``X-ray pulsars''-- neutron stars in pairs with supergiants; Cyg X-1-like sources-- black holes with supergiants; ``SS443-like sources''-- superaccreting black holes. We used two values of the exponent $alpha$ in the initial mass function: 2.35 (Salpeter's function) and 1 (``flat spectrum''). The calculations were made for the folowing values of the upper limit of the mass function: 120 and 30 $M_{odot}$. For the ``flat spectrum'', suggested in (Contini et al, 1995), the number of sources of all types significantly increased. With the ``flat spectrum'' and with the upper mass limit 120 $M_{odot}$ we obtained hundreds of sources of all calculated types. Decreasing of the upper mass limit below the critical mass of a black hole formation increase the number of transient sources with neutron stars up to $approx 300$. In the second set we examined the evolution of of 12 other types of X-ray sources for $alpha=1$, $alpha=1.35$ and $alpha=2.35$ and for three upper mass limits: 120 $M_{odot}$, 60 $M_{odot}$, 40 $M_{odot}$ (see Perez-Olia & Colina 1995 for the reasons for such upper limits) on the same time scale 20 Myr after a star formation burst." @default.
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- W1937242308 date "1997-11-28" @default.
- W1937242308 modified "2023-09-25" @default.
- W1937242308 title "Evolution of close binaries after the burst of starformation for different IMFs" @default.
- W1937242308 hasPublicationYear "1997" @default.
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