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Fig. 20
Extinction curve for XSL in the UVB arm (blue line) and the VIS arm (red line). The Paranal extinction curve of Patat et al. (2011) is shown as the black line for comparison. Lower panel shows the residual between XSL and Patat et al. (2011) calculated by the IRAF.standard procedure and applied to derive the XSL extinction.
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