Download original image
The FUV (a) and MUV (b) dependence on the Mg II index and time. The effect seen in Figure 1 arises from the FUV (a), as two distinct slopes with little scatter are clearly visible, whereas (b) exhibits a much larger scatter in the data. This difference can be due to an increased ageing effect mainly in the FUV where the energetic EUV radiation alters the instrumental efficiency more than in the MUV spectral region.
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.