ИСТИНА

Using ionized gas velocity field obtained with the scanning Fabry-Perot interferometer at the SAO RAS 6-m telescope in the H
emission line, we explored a galactic-scale outflow in the dwarf lenticular galaxy NGC 4460. We created a model of the ionized gas distribution in the wind-blown nebulae, supposing that the H
emission is mainly concentrated in the walls of hollow shell, containing a hotter gas inside. Using this simple geometrical model of the outflows, we created a map of the wind velocities revealing a complex warped gas structure with several decoupled filaments, having typical outflow velocities about 40 – 80 km/s. Applying the pseudo-isothermal dark matter halo model, we found ou, that the wind velocities are too low to allow the escape from the galaxy.