ИСТИНА

tudy of the warm ISM in star forming galaxies is clues for understanding a galactic evolution and effects of stellar feedback. Emission lines ratio diagrams (also known as Baldwin-Phillips-Terlevich plots) are traditionally used for analysis of the state of an ionized gas emitting in the optical range. This method helps easily to determine the source of ionization in case of high-energy processes, but there are difficulties appearing in intermediate cases. Combining classical BPT-diagrams with another parameter — line-of-sight velocity dispersion of the ionized gas (σ) — helps to solve this problem for objects with shocks ionization. We use velocity dispersion maps obtained with scanning Fabry-Perot Interferometer (FPI) at the 6-m telescope BTA with emission line ratios abtained from the different 3D-spectroscopy data to study several local galaxies with different sources of ionization (violent star formation, galactic wind etc.)