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Information × Registration Number 0222U001418, 0119U002528 , R & D reports Title Astrophysics of extragalactic objects: gravitationally lensed quasars and active galactic nuclei. popup.stage_title Head Registration Date 27-01-2022 Organization V.N. Karazin Kharkiv National University popup.description2  The objects of study - the phenomenon of gravitational lens, quasars and active galaxy nuclei. The goal of the work - to obtain the new astrophysical information using investigation of objects created by gravitational lensing and modeling of active galaxy nuclei. The 3-years photometric monitoring of the gravitationally-lensed quasar SDSS J1442+4055 (135 epoch) has been fulfilled. The lightcurves of the components has been built and the time delay of 25±1.5 days has been calculated. Spectra of the components and the lensing galaxy with the use of 2-m and 10.4-m telescopes were obtained. The redshift of the quasar source was determined and the law of absorption in the lensing galaxy was studied, in particular, an increased concentration of chemical elements heavier than helium was detected. The data of observations of the quadruple-lensed quasar Q2237 + 0305 for the period 2006-2019 obtained with the 1.5-m AZT-22 telescope of the Maidanak Observatory and the 2-m Liverpool Robotic Telescope (445 epochs in the R filter) are summarized in a single series. To minimize possible systematic errors, the processing of consolidated images was performed using a single algorithm. The lightcurves of components A-D of Q2237 + 0305 in 5 photometric bands gVrRI were constructed, the phenomenon of microlensing of component C was identified and studied in detail. A dynamic computer model of the AGN gas-dust torus, which takes into account the gravitational interaction between clouds moving in the field of central mass, has been developed and studied. An interpretation of the velocity distribution in the torus of the active nucleus of the galaxy NGC1068 obtained by the ALMA radio interferometer is given. An estimate of the HMCHD mass in NGC1068 at ~ 5 ×106 Msol was obtained. Based on our own observational data, reverberation mapping of source quasars in GLQ SBS 1520 + 530 and Q2237 + 0305 was performed. Product Description popup.authors Bannikova Olena Yu. Berdina Lyudmyla A Zheleznyak Oleksander P Konichek Volodymyr V Kochetov Oleksiy Ye Sinel’nikov Igor Serhieiev Oleksii V Tsvyetkova Viktoriya S Schalyapin Vyacheslav M popup.nrat_date 2022-03-09 Close