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Table 1

Standard deviation of the observed rotation measure in different regions in and around the line of sight of galaxy clusters.

< 0.5r500 0.5−1r500 < r 500 1−10r500

A 123 ± 21 114 ± 43 120 ± 21 57 ± 6
B 94 ± 13 114 ± 43 100 ± 15 57 ± 6
C 124 ± 21 112 ± 43 120 ± 21 52 ± 6

< 0.5 Mpc 0.5−1 Mpc < 1 Mpc > 1 Mpc

D 115 ± 27 107 ± 33 112 ± 21 68 ± 10

N e < 6.5 × 1020 6.5−15.2 × 1020 > 6.5 × 1020

E 58.6 ± 10.5 122.2 ± 35.6 157.0 ± 40.3

Notes. Ne refers to the electron column density in the line of sight. A: RMs uncorrected for the galactic contribution; B: same as A without RMs | RM | > 500; C: with RMs corrected for Galactic contribution; D: region defined in physical radii; E: RMs as a function of electron column density given in units of cm-2. The caption for the last line gives the range of electron column densities for the bin. The bin boundaries have been chosen such that each bin has a similar number of RMs.

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