Free Access

This article has an erratum: []

Fig. 4


The sequence of Na I D line variations for JD 55 667, 55 675, 55 688, 55 697, 55 703, and 55 712 (from bottom to top). Only He I 5875 Å is present in the first (JD 55 667, bottom) spectrum. The progressive displacement of the DACs, with the doublet. The spectrum from JD 55 690 is not included because of the lower signal-to-noise ratio (see text).

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.