Fig. 6.
Fraction of an element in a given ionization state for Mg II (blue solid), Ca II (green solid), and H I (red solid) in a column of the MURaM model atmosphere. Panel a: log-scaled ionization fractions. Panel b: linearly scaled ionization fractions. Panel c: gas temperature (black solid) as a function of height. Vertical lines show the maximum formation heights of Mg II k (dashed blue), Ca II K (dashed green), and Hα (dashed 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.