This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionCoronal Hole Magnetic Field Lines.svg
English: Viewable are magnetic fields in the corona:
In the areas A the field lines are closed and keep the corona's plasma. In the area B they reach out to space, the plasma can leave along the field lines. Area B is a so called coronal hole.
Deutsch: Zu sehen sind die Magnetfelder in der Korona:
In den Bereichen A sind die Feldlinien geschlossen und halten das Plasma der Korona fest. Im Bereich B reichen sie in den Raum hinaus, das Plasma kann längst der Feldlinien entweichen. Der Bereich B ist ein sogenanntes koronales Loch.
Français : Illustration des champs magnétiques observables dans la couronne solaire. Dans les zones A, les lignes de champs sont refermées, retenant le plasma. Dans la zone B, les lignes de champs sont dirigées vers l'espace. Le plasma s'échappe le long de ces lignes de champs. Les zones de type B sont appelées trous coronaux.Cependant, il ne s'agit aucunement de trous. Mais elles apparaissent sombres lors des observations. Les premiers autonomes à avoir constaté ce fait les ont donc baptisées ainsi.
I, the copyright holder of this work, hereby publish it under the following licenses:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
{{Information |Description={{en|1=Viewable are magnetic fields in the corona: In the areas A the field lines are closed and keep the corona's plasma. In the area B they reach out to space, the plasma can leave along the field lines. Area B is a so called