Free Access

Fig. 7


Illustration of counter-streaming flows based on the angle Φ = arccot vxvy for the different wavelengths: (a) λ304 Å, (b) λ171 Å, (c) λ193 Å, and (d) λ211 Å. Blue (red) indicates that the velocity vector is pointing to the left (right). The images were smoothed with a Lee filter. We show the contour of the Hα filament in white. The yellow square shows a ROI of 32 Mm × 32 Mm, where we applied LCT to track the counter-streaming flows (Fig. 8).

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.