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Information × Registration Number 0210U001464, 0107U000673 , R & D reports Title Investigation of the gravitationally lensed systems and the analysis of the quasars structure popup.stage_title Head Dudinov Volodimir Mikolayovich, Registration Date 17-02-2010 Organization Kharkov National University named after V.N. Karazin popup.description2 The photometry results of images of gravitationally lensed quasars (GLQs) are presented obtained from observations in filters VRI with the 1.5-m AZT-22 telescope at the Maidanak Mountain (Uzbekistan). The light curves were built, and their statistical analysis and a comparison with the numerical simulation results was carried out. For the GLQ PG 1115+080, new estimates of the time delays between the flux variations of the lensed images were obtained. A model of brightness distribution for the Q2237+0305 quasar was built from the analysis of brightness and color variations. The model parameters were estimates, and the histograms of microlensing amplification probability density were built for all the four macroimages. The macrolens model for the UM 673 system was built. The results of the 12-year monitoring of the GLQ SBS 1520+530 are presented, which allowed to detect microlensing events. Theoretical studies of properties of gravitating systems caused by the presence on a horizon or quasi-horizon were carried out. Product Description popup.authors Вакулік В. Дудінов В. Желєзняк О. Заславський О. Конічек В. Сінельніков І. Сергєєв О. Смирнов Г. popup.nrat_date 2020-04-02 Close