Difference between the PA of the cluster (see West et al. 2017; Durret et al. 2019) and that of the BCG, as returned by GALFIT. Only clusters found in West et al. (2017) and Durret et al. (2019) are included here. The histogram is to be compared to that shown in West et al. (2017) as a way to check that our results agree with theirs. All BCGs are represented in the gray diagram, while only those with an axis ratio b/a ≤ 0.8 are included in the red diagram. We also exclude all BCGs at redshift z > 0.9 on the blue histogram.
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