Dispersion curves for the torsional wave. The black line is for the torsional wave when the equilibrium twist, , and rotation, ℛ, are both equal to 0.3. The red curves are for the torsional wave when the equilibrium rotation ℛ is equal to 0.3, but the equilibrium twist is equal to zero. The blue curve is for the torsional wave when the equilibrium Twist is equal to 0.3 but the equilibrium rotation is equal to zero. All three solid curves have been obtained numerically from Eq. (14). The red dashed curve is obtained from the explicit expression (Eq. (22)). The speeds are normalised by the internal Alfvén speed.
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.