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Information × Registration Number 0220U104869, 0120U100148 , R & D reports Title Study of the galaxy evolution using chemical composition and dynamics of gas and stars popup.stage_title Head Zinchenko Ihor A., Registration Date 29-12-2020 Organization Main Astronomical Observatory popup.description2 OXYGEN ABUNDNACE, GALAXIES CHEMICAL EVOLUTION, INTERSTELLAR ENVIRONMENT, НІІ REGIONS Research object: Galaxies from the spectral survey MaNGA DR15, superluminous X-ray sources. Research aim: Development of new methods for calculating the chemical composition of both the interstellar medium and the stellar component of the galaxy. Creating a single scale of chemical composition for the interstellar medium and stars. Research methods: Processing was performed using the ELF3D software package developed in 2015 to determine the parameters of emission lines and adapted by us software package STARLIGHT for use in the grid environment UNG. Observations on the George Michael spectrograph of 13 regions in the galaxy NGC 925 followed by calibration using the STARLIGHT code and observations on the Fabry-Perot interferometer PUMA were used to determine the parameters of ultraluminous X-ray sources. Results and their originality: During the first stage of the project 1) a new version of the ELF3D software package for automatic measurement of emission line groups was developed, optimization for work with large spectral surveys was carried out, 2) a catalog of spectra with auroral emission lines for НІІ regions with high metallicity was created, 3) oxygen abundances and N/O ratios calculated by theoretical and empirical methods were compared, 4) it is shown that the radial gradient of the ratio of nitrogen abundance to oxygen abundance depends on the mass and color index of the galaxy. Product Description popup.authors Ivaniuk Oleksii M. Sobolenko Margaryta O. Sukhorukov Andriy V. popup.nrat_date 2020-12-29 Close