Attenuation Modified by DIG and Dust as Seen in M31

DFG SCHI 536/8-2 KR 4598/1-2 1573 Australian Research Council FT140101202 ONICYT/FONDECYT, Programa de Iniciacion, Folio 11150220 BMVIT (Austria) ESA-PRODEX (Belgium) CEA/CNES (France) DLR (Germany) ASI/INAF (Italy) CICYT/MCYT (Spain) CSA (Canada) NAOC (China) CEA (France) CNES (France) CNRS (France) ASI (Italy) MCINN (Spain) SNSB (Sweden) STFC (UK) NASA (USA) National Science Foundation 1615105 1615109 1653300