Fig. 3.
Download original image
Example of HSFA2 observations. Left: HSFA2 SJI in Hα. The vertical line in white corresponds to the position of the spectrograph slit, the two vertical cyan lines mark the two extreme positions of the slit, and two horizontal lines are used for the coalignment of the SJI and spectra. Right: Hα and Ca II H spectra taken along the vertical slit in the SJI with scattered light removed. SJI and spectra are coaligned in the vertical direction.
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.