M_⋆ – SFR relation at z = 0.01 and z ≃ 0.09. The grey scale histogram materialises the population of the whole galaxy population extracted at z ≃ 0.09 from our model m₃. The mean trends of our whole and sub-sample of SF galaxies are shown with green and blue lines, respectively. Solid and dashed lines show the trend at z = 0.01 and z ≃ 0.09, respectively. Error bars are computed following the first and the third quartile of the distribution. These relations are compared to the observational data of Peng et al. (2010): the black solid line shows the mean trend of the main sequence found in the SDSS-zCOSMOS (0.02 <z_obs< 0.09) survey. The two dashed lines materialise a scatter of 0.3 around the mean relation.