ИСТИНА

We performed long-slit spectral observations of three galaxies which were previously suspected as the galaxies with peculiarly low mass-to-light ratios of stellar population based on the galaxy mass estimates from the HI linewidths: NGC5347, UGC1344, UGC11919. The observations were conducted with the Russian 6-m BTA telescope and were aimed to clarify the kinematics and stellar population of the galaxies. The results of the observations disproved the peculiar mass-to-light ratio in all three galaxies. For UGC11919 the inclination angle appears to be lower than it follows from the photometry, NGC5347 possesses high velocity dispersion which leads to the high asymmetric drift correction increasing the velocity, the measured rotation velocity of UGC1344 turned out to be at least 3 times higher than that calculated from the HI linewidth. The interesting detail that we found and studied in all these galaxies is the presence of kinematically decoupled nuclear component. In UGC11919 and NGC5347 the age of stellar population is lower for the innermost part in comparison to that of the bulge. The metallicity of the central region is higher than that of the bulge for NGC5347 and UGC1344 and slightly lower for UGC11919, revealing the possible different formation histories of these nuclear components. All three galaxies possess bars, which could provide conditions for the formation of the nuclear kinematically distinct structures.