ИСТИНА

Many void galaxies reveal lower metallicity for their luminosity in comparison with galaxies in denser environment. It may be treated as evidence of a slower evolution of galaxies in voids, or it may be the result of mergers, interactions between galaxies, and the accretion of the metal-poor gas. I will present our study of void galaxies, and in particular, the search for and study of tentative young void population (analogs of Very Young Galaxies from Tweed et al. 2018). Also I will present our results of searching for gas accretion imprints in void galaxies. Such accretion events could lead to drop of metallicity in certain regions, kinematical perturbations and star formation on the periphery of galaxies. To examine the hypothesis of gas accretion onto selected void galaxies we observed them with long-slit spectrograph and with Fabry-Perot interferometer at 6m SAO RAS telescope (Russia).