Empirical IRX calibration by combination the β_UV and M_*. The plane fit in the 3D IRX–β_UV − M_* diagram provides us with the equation log(IRX)=(0.51 ± 0.06)β_UV + (0.37 ± 0.08)log(M_* [M_⊙]) − 1.89 ± 0.40, which can be used to correct the dust attenuation when β_UV and M_* are known. The y-axis corresponds to the IRX obtained from SED-fitting analysis over the stacked LBGs SEDs. The x-axis corresponds to the IRX calculated from the plane fit equation. The black points indicate the results from the SED-fitting and stacking analysis as a function of β_UV and M_*, and the combination of the two (LBG-β, LBG-M, LBG-Mβ1, and LBG-Mβ2). The red line indicates the 1-to-1 relation.