Volume 398, Number 3, February II 2003
|Page(s)||801 - 807|
|Published online||28 January 2003|
A force-free field with constant alpha in an oblate cylinder: A generalization of the Lundquist solution
Astronomical Institute, Academy of Sciences, Boční II 1401, 141 31 Praha 4, Czech Republic e-mail: email@example.com
2 Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, Troitsk, Moscow Region, 142190, Russia e-mail: firstname.lastname@example.org
Corresponding author: M. Vandas, email@example.com
Accepted: 30 October 2002
A force-free magnetic field with constant alpha for a circular cylindrical flux rope (Lundquist solution) is widely used to describe the magnetic field configuration in interplanetary flux ropes. Observations as well as MHD simulations indicate that interplanetary flux ropes are not circular but have an oblate shape. Here we present an analytical solution for a force-free magnetic field with constant alpha in an elliptic flux rope which may be regarded as a direct generalization of the Lundquist solution. An alternative simpler solution for a force-free magnetic field with constant alpha in an oblate flux rope is discussed.
Key words: magnetic fields / Sun: coronal mass ejections (CMEs)
© ESO, 2003
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.