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Fig. 5

image

Dust extinction, AV, and redshift has been inferred for three HAQ quasars by fitting for the amount of reddening required to match the template with the observed spectrum. The black spectra are taken at the Nordic Optical Telescope (NOT) using the ALFOSC spectrograph. The black squares are optical ugriz photometric points from SDSS and UKIDSS YJHK bands. For varying amount of extinction at different redshifts, consistent results are found with previous usage of stitched composites.

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