Fig. 8.
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Top panel: Power spectra of Stokes I parameters (right) for three positions in the polar cap (left) with the frequency scaled to the plasma frequency ωp = 1.6 ⋅ 109 rad s−1. The analyzed regions are denoted as black boxes in Fig. 5a. Bottom panel: Polarization degree as a function of frequency at the same locations as above.
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