Fig. 7.

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Different aspects concerning the debias procedure for the BINGO channel 15 (1125–1136 MHz). Top: reconstructed 21 cm power spectrum (yellow dots) for the BINGO channel 15 (1125–1136 MHz) in logarithmic scale (left) and linear scale (right), after foreground cleaning with GNILC and debiasing. Bottom left: estimate of the suppression factor on the 21 cm signal across multipoles. Bottom right: difference between the reconstructed and input 21 cm signal power spectra.
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