ИСТИНА

I have analysed line-of-sight velocity fields of the stellar and ionized-gas components for the volume-limited sample of nearby lenticular galaxies by using the raw data of the ATLAS-3D survey undertaken with the integral-field spectrograph SAURON. Among 200 nearby lenticular galaxies, I have found 20 cases of orthogonal rotation of the inner ionized gas with respect to the central stellar component; so I estimate a frequency of inner polar disks in nearby S0 galaxies as 10%. Properties of the central stellar populations -- mean ages, metallicities, magnesium-to-iron ratios -- are derived through the Lick index calculation. In my talk, I will compare the typical stellar population properties of the polar-disk host galaxies with the stellar population properties over the complete sample of nearby S0 galaxies.