Comparison of skycorr (red) and Davies’ code results (cyan) for an example SINFONI K-band spectrum of the ESO observing programme 075.B-0648 showing the Seyfert 2 galaxy NGC 6240 (cf. Rosenberg et al. 2012). While the upper panel shows the full input science spectrum (black), the lower panel focuses on the sky-subtraction results. Highly negative fluxes (only Davies’ code) mark pixels with undefined fluxes. The time difference between the object and sky exposures was 11 min.
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