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Information × Registration Number 0219U102424, 0119U102399 , R & D reports Title Analysis of the galaxies' сharacteristics from the digital sky survey MaNGA DR15 popup.stage_title Head Zinchenko Ihor A., Registration Date 28-12-2019 Organization Main Astronomical Observatory popup.description2 We analysed MaNGA DR15 (Mapping Nearby Galaxies at APO) survey data containing 4824 galaxies. As a result of the first phase of our project, we created maps of the distribution of physical quantities: intensity of emission lines, velocities (and velocity dispersion) of gas and stars, oxygen and nitrogen contents in the interstellar medium for a large sample of galaxies. We derive the circular velocity curves of the gaseous and stellar discs of UGC 4056, a giant barred galaxy with an active galactic nucleus (AGN). We analyse UGC 4056 using the 2D spectroscopy obtained within the framework of the Mapping Nearby Galaxies at APO (MaNGA) survey. Using images and the colour index g − r from the Sloan Digital Sky Survey (SDSS), we determined the tilt of the galaxy, which allows us to conclude that the galaxy rotates clockwise with trailing spiral arms. We found that the gas motion at the central part of the UGC 4056 shows peculiar features. The rotation velocity of the gaseous disc shows a bump within around three kiloparsecs while the rotation velocity of the stellar disc falls smoothly to zero with decreasing galactocentric distance. We demonstrate that the peculiar radial velocities in the central part of the galaxy may be caused by the inflow of the gas towards the nucleus of the galaxy. The unusual motion of the gas takes place at the region with the AGN-like radiation and can be explained by the gas response to the bar potential. Product Description popup.authors Sobolenko Margaryta O. popup.nrat_date 2020-04-02 Close