IRX–M_* diagram. Our rest-frame FUV-to-FIR stacking analysis as a function of M_* (LBG-M) results and the power-law fit are shown by red squares and solid line. The blue line presents the consensus relationship for star-forming galaxies at redshifts 2 <  z <  3 (Bouwens et al. 2016), and defined by a combination of different works done in the literature (Reddy et al. 2010; Whitaker et al. 2014; Álvarez-Márquez et al. 2016). This relation includes that previously derived from a FIR stacking analysis over our LBG sample (AM16, dotted blue line). We overplot the relations obtained from a stacking analysis of UV-selected galaxies at redshift z ∼ 3 (Heinis et al. 2014, dashed line) and a complete sample of star-forming galaxies up to z ∼ 4 (Pannella et al. 2015, dot-dashed line). We also show the IRX–M_* results from LBGs at redshifts, z ∼ 3 (Koprowski et al. 2018, orange dot) and 2 <  z <  3 (Bouwens et al. 2016, gray dot), and star-forming galaxies at redshifts 2 <  z <  3 (McLure et al. 2018, green dots) and 1.5 <  z <  2.5 (Reddy et al. 2018, black dots). The downward triangles represent upper limits.