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Fig. 4

image

Comparison of best-fit parameters of extinction AV (left) and optical spectral index βO (right) obtained by fitting the broadband SED with photometric measurements and X-Shooter spectra. Dashed lines represent relations AV,Xshoot = AV,phot and βO,Xshoot = βO,phot. Filled and empty symbols represent the cases where the broadband SED is best described by a single or broken power law, respectively.

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