ИСТИНА

One of the important ingredients of galaxy evolution is how galactic discs have been grown. This process is still not fully understood. Investigating kinematically peculiar galaxies hosting two counter-rotating stellar discs can shed light on the role of the external material acquisition in galactic disc formation. In this contribution, we review a recently started project on the study of stellar counter-rotating galaxies identified in the MaNGA survey. The dedicated analysis of the integral spectra allows revealing a double-peaked structure in the stellar line-of-sight velocity distribution in such galaxies. Applying a two-component full spectral fitting we are trying to determine properties of stellar populations of both discs which provide crucial information for understanding the evolution of these galaxies.