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Дата изменения: Mon Oct 25 17:46:38 1999
Дата индексирования: Tue Oct 2 12:07:43 2012
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Seminars

All-Moscow Seminar of Astrophysicists
(ASA)

The seminar is supported by the grant of Federal Programm "Integration"
annotation of talk
Popov S.B., Prokhorov M.E., Lipunov V.M. (SAI)
Initial mass finction and close binaries evolution after star formation burst


We use "Scenario Machine" to calculate evolution of populations of several types of X-ray sources during the first 20 Myrs after a starformation burst.

We examined the evolution of 12 types of X-ray sources in close binary systems (both with neutron stars and with black holes) for different parameters of the IMF -- slopes: alpha=1, 1.35 and 2.35 and upper mass limits, Mup: 120MO, 60MO and 40MO. Results, especially for sources with black holes, are very sensitive to variations of the IMF, and it should be taken into account when fitting parameters of starformation bursts.

Results are applied to several regions of recent starformation in different galaxies.