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Fig. 1.


Composite image showing the visual correlation of EBHIS HI 21 cm brightness temperature (Tb(Vlsr), blue) with LOFAR HBA Faraday tomographic data (, orange) and Planck magnetic-field orientations, χd, at 353 GHz (drapery pattern). All maps are shown in celestial coordinates. Left panel: Tb of Field 3C196 at Vlsr = −5 km s−1 and at ϕ = 0 rad m−2. Right panel: Tb for Field A at Vlsr = +1.4 km s−1 and at ϕ = −1.25 rad m−2. The gray circle in each panel traces the size of the primary LOFAR beam.

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