Fig. 6

As Fig. 5, but for second-order spectra compared to first-order spectra. Owing to the specific geometry of missing CCDs (CCD7 for RGS1, CCD4 for RGS2) we compare all fluxes to the first order of RGS2. Open symbols: second-order chips 1, 3, 5, 7, 9; filled symbols: second-order chips 2, 4, 6, 8. Triangles: first-order chips 1, 3, 5, 7, 9; circles: first-order chips 2, 6, 8.
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