Observed spectrum (dashed line) of HD 140283 (top) and HD 23030 (bottom) at R = 40 000. The corresponding 1D synthetic spectra grid with lithium variations from −1 to 4 dex and a step of 0.2 dex, with the grid interpolated at the atmospheric parameters of both stars, is shown in red.
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.