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Fig. B.1


Proper motions in mas yr-1 for the μαcos(δ) component (top) and the μδ component (bottom) as a function of right ascension (α; left) and declination (δ; right). Lines indicate the medians of all measurements and their uncertainties. Each point corresponds to the median of 1000−5000 galaxies. Error bars correspond to the bin size in deg (0.04 deg and 0.1 deg for the μαcos(δ) and the μδ components, respectively) used to derive median proper motions (horizontal) and to the error on the medians (vertical).

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