Ratio of uncertainties derived by bootstrapping the 1D spectra against that obtained by formally propagating the uncertainties from the 2D spectra and assuming uncorrelated Gaussian noise. The values shown are the median of the ratios among all the targets within the mask (COS-W182) and error bars show the error on the median. We show this ratio for the two bands (H in blue, K in red) as a function of spectral binning. The dashed line indicates the binning adopted in this work.
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