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Fig. 19


Estimate of the LyC escape fraction for the AGN SDSS36 observed with MODS1-2 at the LBT telescope. The spectrum is in Fν and is arbitrarily normalized and blueshifted to z = 0 (rest-frame frequencies). The green portion of the spectrum shows the spectral region between 915 and 945 Å rest frame (excluding the wavelength range 935-940 Å due to the presence of the Lyman-ϵ emission line), while the magenta portion indicates the ionizing photons emitted between 892 and 905 Å rest frame. The blue vertical line indicates the location of the 912 Å rest-frame break. The red horizontal lines mark the mean values above and below the Lyman limit, after the iterative 2-σ clipping. The resulting escape fraction is the ratio between these two mean fluxes, and turns out to be 81% for SDSS36.

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