Free Access

Fig. 1


Top panels: element abundances over depth following from two different treatments of radiative acceleration by photoionization (Teff = 54 000 K, log g = 8.2). Left: the whole photon momentum is transferred to the ion. Right: only a fraction is transferred, according to Eq. (3). Bottom panel: difference. The peaks correspond to a shift of the steep regions of the abundance pattern by one depth point in the model atmosphere.

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.