Dereddened (H − K)0 vs. K0 diagram of the Galactic centre field using the data of Nishiyama et al. (2009) and the extinction map of Schultheis et al. (2009). In red, we indicate our selected M giants. The blue lines show the Padova isochrones with Z = 0.008, τ = 1 Gyr (solid line), and τ = 10 Gyr (dashed line), while the green line is at Z = 0.06 and τ = 10 Gyr. The arrow on the top right shows the extinction vector of AK = 1 mag (Nishiyama et al. 2009).
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.