Fig. 2
Spectrum of APM 08279+5255 obtained with the AFOSC camera at the 1.82 m Copernicus Telescope of the Asiago Observatory. The identification of the main absorption and emission features are indicated. The red line represents the correction for the telluric O2 and H2O bands. A power-law fit through spectral regions relatively free of absorption or emission features is also shown (see Sect. 4.1).
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