ИСТИНА

Resolved ionized gas kinematics is one of the key tools in our understanding of the gas flows regulating the baryon cycle in galaxies. During the last 20 years, we obtained the data with the high-resolution (R=16000) Fabry-Perot interferometer at the 6-m telescope BTA for about 90 nearby (mostly dwarf) galaxies. These data provide information on the ionized gas kinematics in a single emission line (usually Halpha) useful not only for the analysis of general gas kinematics in these objects but also for the identification of the non-circular motions, which might imprint the recent gas inflows or impact of stellar feedback. The obtained observational data and results of their analysis are now compiled in the “SIGMA-FPI” catalogue. Here I present some details of it and highlight our most recent results obtained for two nearby low-metallicity dwarf galaxies - DDO 53 and Sextans A, where we detected the signatures of either the gas inflows, outflows or localized stellar feedback driving the superbubbles expansions.