Left: comparison of the extinction-corrected SFR_Paα with the monochromatic SFR_{24 μm}. The blue circles and green diamonds correspond to our local LIRGs and ULIRGs, respectively. The green circles are data of M51 individual star-forming regions from Calzetti et al. (2005) and the red diamonds correspond to data from Calzetti et al. (2007) of SINGS galaxies. Right: comparison of extinction-corrected Paα luminosity and L_IR. Our LIRG and ULIRG samples are plotted as blue circles and green diamonds, respectively, orange diamonds are data from Kewley et al. (2002) of normal galaxies from the NFGS, while red squares correspond to local LIRGs from Alonso-Herrero et al. (2006). In both panels, the black lines correspond to a one-to-one ratio. Uncertainties at 1σ level of the Paα measurements are smaller than the size of the symbols.