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The kinematics of galactic rings were studied with a scanning Fabry-Perotinterferometer mounted in the multi-mode focal reducer SCORPIO (Afanasiev &Moiseev 2005) at the SAO RAS 6-m telescope. The analysis of the ionized gasvelocity fields allows us to understand the nature of the ring formation inseveral galaxies. The different types of the rings in the presented objects(resonanced, collisional, polar) were caused by the various sorts ofinteractions: merging, head-on collisions.

3D spectroscopy of the ionized gas kinematics in galactic rings