ИСТИНА

tellar feedback is important process regulating the ISM morphology and kinematics. Cumulative action of the winds and ionizing radiation from massive stars with a following supernova explosions blow out superbubbles having sizes from a few pc to several kpc. This process is especially important in dwarf irregular galaxies, which thick gaseous disk and a lack of the density waves allow such structures to live longer and grow to a larger sizes than in spiral galaxies. Here we present the results of ongoing survey of the ionized gas morphology and kinematics conducting with a scanning Fabry-Perot interferometer at the Russian 6-m telescope. Currently we have obtained data for 15 galaxies, mostly from M81 group. We have identified several tens of expanding structures in the ISM of observed galaxies. Thanks to a proximity of these galaxies, we were able to identify individual OB stars by the archival HST data and to compare directly the energetics of the observed superbubbles and their driving sources. Using also the available data in HI 21 cm and FUV we compare the ionized and neutral gas kinematics in the observed galaxies and analyze the propagation of star formation across them. We have found that at least in several galaxies the collision of the giant kpc-sized supershells plays important role in triggering of a new burst of star formation.