SED (black line) from the radiative transfer model, together with the observed SED of DG Tau (red circles). We also plot the flux contributions from different radial regions: the inner region including the star and the inner disk (<3 au, blue) and the outer disk (>3 au, purple). We note that in the optical regime time-averaged data points are shown and their error bars indicate temporal variability. The data points are from the literature (Egret et al. 1992; Kislyuk et al. 2000; Zacharias et al. 2004, 2012, 2015; Röser et al. 2008; Niels Bohr Institute et al. 2014; Morel & Magnenat 1978; Droege et al. 2006; Henden et al. 2016; Herbig & Bell 1988; Ahn et al. 2012; Skiff 2014; Kraus et al. 2011; Ayres 2010; Folha & Emerson 2001; Grankin et al. 2007; Assafin et al. 1996; Richichi & Percheron 2002; Richichi et al. 2005; Connelley & Greene 2010; Cutri et al. 2003, 2014; Bary et al. 2009; Kóspál et al. 2012; Luhman et al. 2006; Cieza et al. 2009; Salyk et al. 2013; Ishihara et al. 2010; Yamamura et al. 2010; Di Francesco et al. 2008; Andrews et al. 2013; Altenhoff et al. 1994; Dzib et al. 2015).