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Fig. 11

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Structure functions for RMs of extragalactic sources taken from Taylor et al. (2009), the southern shell of CTA 1 (negative RMs), and the eastern shell and the central branch of CTA 1 (positive RMs). The squared RM differences for extragalactic sources at line-of-sights through and outside CTA 1 from Simonetti (1992) are also shown.

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