New Halpha flux measurements in nearby dwarf galaxies
  We present the emission Halpha line images for 40 galaxies of the Local
Volume based on the observations at the 6-meter BTA telescope. Among them there
are eight satellites of the Milky Way and Andromeda M31 as well as two
companions to M51. The measured Halpha fluxes of the galaxies are used to
determine their integral (SFR) and specific (sSFR) star formation rates. The
values of Log(sSFR) for the observed galaxies lie in the range of (-9, -14)/yr.
  A comparison of SFR estimates derived from the Halpha flux and from the
ultraviolet FUV flux yields evidence that two blue compact galaxies MRK 475 and
LV J1213+2957 turn out to be at a sharp peak of their star-burst activity.
