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We present a study of the integrated properties of the 835 galaxies in theCALIFA survey. To derive the main physical parameters of the galaxies we havefitted their UV-to-IR spectral energy distributions (SED) with sets oftheoretical models using CIGALE. We perform a comparison of the integratedgalaxy parameters derived from multi-band SED fitting with those obtained frommodelling the Integral Field Unit (IFU) spectra and show the clear advantage ofusing the SED-derived star formation rates (SFR). A detailed analysis ofgalaxies in the SFR/Mstar plane as a function of their properties reveals thatquenching of star formation is caused by a combination of gas deficiency andthe inefficiency of the existing gas to form new stars. Exploring the plausiblemechanisms that could produce this effect, we find a strong correlation withgalaxy morphology and the build-up of central bulge. On the other hand, thepresence of AGN and/or a stellar bar, as well as the local environment haveonly temporal effects on the current star formation, a result also consistentwith their model-derived star formation histories.

The integrated properties of the CALIFA galaxies: Model-derived galaxy parameters and quenching of star formation