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Fig. 2


Coefficients of a linear relation between the normalised line of sight velocity dispersion, σlos/Vc, and the apparent elongation, q2D, of the clusters. The shaded regions show the 68 and 95 per cent confidence contours of the posterior probability distribution marginalised over the intrinsic scatter in σlos/Vc. A positive slope signifies a correlation between the normalised line of sight velocity dispersion and the apparent elongation, consistent with prolate cluster shapes both in 3D position and 3D velocity space.

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