Fig. 3.
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Histogram of galaxy recessional velocities in the TriAus cluster with all recession velocities available in the range of 9500 ≤ v ≤ 19 000 km s−1, with a step size of 500 km s−1. The lines show Gaussian distributions fitted to the data including all galaxies (dashed line) and excising the substructure of 26 galaxies (solid line).
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