B − V vs. stellar density (solar units). The point is EPIC 210894022 with B − V corrected for reddening based on the interstellar Na I absorption in the star’s spectrum. Dartmouth Stellar Evolution Program (DSEP; Dotter et al. 2008) isochrones for 8–13 Gyr-old stars with [Fe/H] = − 0.5 and [α/Fe] = +0.4 are plotted; heavy points are for those with Teff within 50 K of the spectroscopic value of 5730 K. The solid line is the 12.5 Gyr old isochrone, which minimizes the χ2 function.
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.