Mean light curves of periodic sources of hard x-rays in the central region of the galaxy observed by prognoz-9статья
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Аннотация:New periodic processes with periods 152, 98, 67, 13, 9.4, 3.4, and 1.96 h have been discovered during extended (over two months), virtually continuous observations of the central region of the Galaxy in an x-ray experiment on the Prognoz 9 satellite. Mean light curves corresponding to those periods have been obtained in the 10-50, 25-50, and 50-100 keV ranges. The shapes of the curves are rather varied and may be explained both by orbital motion of the components of the binary systems and their precession.