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Fig. A.3

image

Effect of rebinning on the power spectrum. a) The top panel shows the power spectra of MILES 915 (a noisy spectrum, in green) and MILES 924 (a high S/N spectrum, red); the power spectra are smoothed with a 10 bin boxcar for visualization purposes. b) The bottom panel represents the power spectrum of white noise (in black), and of its transformation after one, two (in grey) and three (in blue) quarter-pixel shift linear rebinnings. The green line is the difference between the two spectra of the top panel. The power spectra are smoothed with a 100 bin boxcar for visualization purposes.

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