Star Formation Rate in late-type galaxies: I- The H(alpha) and FUV
  integrated values
  The Star Formation Rate (SFR) was determined from a sample of 36 late-type
galaxies (14 dS and 22 Sm), from the H(alpha) and Far Ultraviolet (FUV) flux.
We found that the SFR(FUV) was in most cases higher than the SFR(H(alpha)).We
also obtained that the SFR is larger for Sm galaxies and smaller for barred
galaxies, for any morphological type, in both diagnostic methods. In addition,
a study of the spatial distribution of star formation within these galaxies was
made, concluding that there is not a preferential place for the star formation.
Finally, we studied the role of the Diffuse Ionized Gas in the SFR value,
finding that the H(alpha) flux contribution coming from this gas should not be
included in the SFR determination unless it is verified that leaking photons
are the only source of the neutral gas ionization.
