Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-01-09
Astronomy and Astrophysics
Astrophysics
The summary of PhD thesis, 12 pages, 9 figures
Scientific paper
The thesis is mainly devoted to the study of spectral and timing characteristics of the X-ray emission from Galactic black hole candidates GRS 1915+105, GX 339-4, 4U 1630-47, XTE J1748-288, GRS 1739-278, KS/GRS 1730-312 and GRS 1737-31. The main results include: observation of the correlated evolution of spectral and timing parameters of these sources and its interpretation in the framework of two-phase model of the accretion flow near the compact objects; development of the quantitative model for the evolution of GRS 1915+105 during flaring state providing direct estimate of the disk accretion rate in the system; restrictions on the parameters of the spatial distribution and luminosity function of the Galactic hard X-ray transient sources; application of the the bulk motion comptonization model to the analytic approximation of the broad--band energy spectra of Galactic black hole candidates in the high/very high state obtained with RXTE.
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