ИСТИНА

We study the structure and kinematics of ionized gas in four early-type galaxies at different stages of the transition from the blue cloud of star-forming galaxies to the sequence of passively evolving galaxies. This sample was already studied in HI by Wong et al. (2015). Some galaxies present spatial offsets between gas reservoir and stellar discs. Consideration of ionized gas properties helps us to draw a conclusion about the processes that lead to a fast truncation of star formation on time-scales of several hundred Myr to 1 Gyr. Owing to the lack of neighboring galaxies, this rapid quenching appears most likely due to AGN activity. Using long-slit and 3D spectroscopic observations at the Russian 6-m telescope, we attempt to describe the misalignment between gaseous and stellar discs with the spatial resolution 5-10 times better than the HI data