Comparison between the star formation rate determined using different tracers. SFRHα + BD stands for star formation rates determined using Hα luminosities corrected for Balmer decrement (using the gandalf dataset), and SFRHα + 24 μm corrected using the prescription of Calzetti et al. (2010) based on the 24 μm emission. SFRFUV + 24 μm were determined using GALEX FUV data corrected for dust attenuation using the 24 μm emission following Hao et al. (2011), and SFRradio using the 20 cm radio emission following Bell (2003) (see Appendix C). Black symbols are for galaxies with a spectroscopic σ [C(Hβ)] ≤ 0.1, red symbols for galaxies with σ [C(Hβ)] > 0.1. Filled dots are for galaxies with a normal gas content (HI - def ≤ 0.4), empty symbols for gas-poor objects (HI - def > 0.4). The black solid line shows the 1:1 relation, the black dotted line the bisector fit (and σ its dispersion) determined using the best quality sample (σ [C(Hβ)] ≤ 0.1).
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