Free Access

Fig. 11.

image

Proper motion diagram of the NGC 3532 field. Left panel: all stars common to the catalogues of C11 and Gaia DR2. In this plot no difference between the proper motions of the field and cluster stars is visible. Right panel: same as left but zooming in on the region outlined on the left, with the sample limited to the spectroscopically observed stars. Here the cluster (black dots) is distinguishable from the field (crosses and grey squares). We have separated the field into the background giant component (grey squares) and the foreground component (crosses). The histograms show the distribution of radial velocity members (black) and background giant stars (grey). The dashed lines give the centre of the distribution of the members (μα = −10.37 ± 0.16 mas yr−1, μδ = 5.18 ± 0.08 mas yr−1) and the circle defines the region of proper motion members.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.