Free Access
Fig. 1
Range of the Ca ii-K and -H of the four stars. The extreme Ca deficiency of SDSS J174259+253135 is clearly visible in comparison to the three other stars of the sample. The dotted lines mark the positions of the stellar Ca ii lines to help to distinguish them from the interstellar lines.
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.