E and B modes for the case of 𝒜ℬ𝒞 field illustrated in Fig. 1. Panel a: normalized autocorrelation power spectra of E and B modes, where max/max, and the parameters and (see Eq. (9)). These functions attain the exact same value independently of the sign of the total helicity, H. Panels b and c: maps of E and B modes with LOS integration along the y-axis.
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