Distribution of model parameters. Top row: ionization parameter U and density nH for the best-fitting single models (circles) or mixed models (component #1: squares and component #2: triangles). For mixed models, the black lines link the two model components and the symbol size is proportional to the scaling factor fc of each component. Bottom row: same for the radiation field G0 impinging the PDR and the average PDR density nH, PDR. Color coding corresponds to Z (left panels) and sSFR (right panels). Galaxies with no sSFR value are displayed with open symbols.
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