Free Access

Fig. 4

image

Same as Fig. 3 but for models B1, B5, and U5. The locus of these models is not predefined and thus we only plot the over-density of the spiral arms. The colour scale is the same for all panels but is slightly different from the scale of Fig. 3.

This figure is made of several images, please see below:

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.