Free Access

Fig. 3


Galactic rotation velocity derived for the APOGEE-TGAS (DR12) sample. Stars chemically associated with the thin and thick disks are shown as black and red dots, respectively. The average values found in the boxes introduced in Fig. 1 are shown as triangles, and the straight lines correspond to linear least-squares fits to the average values. The filled circles correspond to the intermediate-[α/Fe] stars not included in the thin or thick disk samples. The average values typically come in pairs at any given [Fe/H], since both the thin and thick disk populations are covered by two rows of boxes in Fig. 1.

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.