Fig. 9.

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Polarization spectrum in the microwave frequency range. In addition to the traditional spectrum which only includes thermal dust and synchrotron emission, an AME (spinning dust) component is added here with a maximum polarization fraction of 1%. The thermal dust and synchrotron spectra are determined by results from BEYONDPLANCK LFI analysis (Svalheim et al. 2023b). The cyan and orange vertical bands correspond to the WMAP, and Planck bands respectively.
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