Planck 2018 results
Free Access

Fig. 34.


Amplitude ratio between total polarized foregrounds and CMB as a function of both multipole moment and frequency, as defined by , with parameters derived from 78% of the sky as estimated by Commander. The top and bottom panels show EE and BB spectra, and the black and red contours in the latter corresponds to tensor-to-scalar ratios of r = 0.0 and 0.05, respectively.

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