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Table 9

Influence of wavelength grid correction by a Chebyshev polynomial of order wlc_n on the telluric absorption correction of the spectrum displayed in Fig. 2.

wlc_n Rel. FWHM PWV Ioff Ires
rms [pixels] [mm]

0 0.054 3.76 1.46 −0.008 0.235
1 0.126 7.25 1.51 −0.046 0.456
3 0.121 7.05 1.51 −0.053 0.459
5 0.120 6.98 1.51 −0.050 0.453

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