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Information × Registration Number 0207U004732, 0104U000669 , R & D reports Title Research of gravitational lensed quazars popup.stage_title Head Dudinov Volodimir Mikolayovich, Registration Date 14-08-2007 Organization Kharkov national university named after V.N. Karazin popup.description2 Object of research - the gravitationally lensed systems GLS), in particular, far quasars, which images are created by action of gravitational fields of closer galaxies in cases when the last are located near to a beam of sight between a quasar and the observer. The purpose of work - measurement of shine and color separate lensed components of a quasar, research of their variations as functions of time and reception on their basis of the new information on spatial structure of a quasar and statistical characteristics of the star population lensed galaxies and their comparison with characteristics of our Galaxy. Methods of research - photometry with use of different algorithms of processing of images (double iterative subtraction of hardware function, etc.) spekl-interferometry of double and multiple systems; the correlation analysis of non-uniform numbers of observable data; numerical modelling of events microlensed. Results of photometry images of gravitational lens Q2237+0305 which have been received in filter R in June-October, 2003 on 1.5-m telescope established on mountain are presented. Accuracy of photometry 0.01 m-0.02 m for the brightest components and In and 0.05 m-0.07 m for weaker C and D is reached. For the first time in this system practically synchronous variations of shine of all four components which are growing out change of shine lense of a source are revealed. This fact is the most convincing proof of gravitationally ensed the nature of this object. Method cross-country-correlation analysis of curves of shine GLS Q2237+0305 received within the limits of monitoring program OGLE in filter V in 1997-2001 years is developed for an estimation of time delays of variations of shine which has been used for the analysis of curves of shine Q2237+0305 which are constructed by results of supervision in June-October, 2003 by the method of statistical modelling is lead. As a result of the lead analysis of the received curves of shine it is possible to approve: - received internal accuracy of photometry components Q0957+561 (in a cycle of supervision of components Q0957+563 during the second cycle of Program QuOC on mountain Majdanak) which is usually limited by mistakes of correction of sensitivity of chamber BroCam in focus of telescope of 26 m, owing to described in the report of procedure of processing it is finished on the size almost up to Puasson borders; - In curves of shine of components and In variations of shine on intervals of the order of several hours have been revealed; - change of shine which has been revealed, is statistically significant in comparison with mistakes at least for two nights (on March, 14th - the component In, and on March, 21st - a component), that is confirmed with result of check by means of the F-test. Product Description popup.authors popup.nrat_date 2020-04-02 Close