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Fig. 2

image

Variation of the continuum emission level with the percentile used. Each line corresponds to the spectral test cases shown in Fig. 1. The real continuum level is at 50 K. The grey vertical lines show for which percentile the continuum emission level would match the real continuum level. Absorption-dominated spectra requires of higher percentiles, while a lower percentile works better for emission-dominated spectra.

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