Comparison between L_dust estimated from the fit of the stellar continuum (x-axis) and with IR data (y-axis). Filled squares are used to represent GS galaxies and UDF galaxies are plotted with empty squares. The COSMOS sample is plotted with dots color coded with redshift. The black solid and dashed lines represent the linear regression and 2σ dispersion for the full COSMOS sample. The red dot-dashed and dotted line the 2 and 3σ dispersion for the COSMOS galaxies with 1.5 <  z <  2.5 and L_dust >  10¹¹ L_⊙.