Schedule by Session
Abstract
The Physical Processes Underlying Space Weather: Formation, Eruption and Propagation of Coronal Mass Ejections
The global distribution of magnetic helicity in the solar corona
Durham University
I will argue that "field line helicity" is a useful tool for describing the magnetic structure within the Sun's corona, and particularly for identifying magnetic flux ropes. Being an integral quantity, not to mention an ideal invariant, it is a robust and physical measure of magnetic sub-structure. In fact, it is the most meaningful way to say "where" magnetic helicity is stored within the coronal volume. I will explain how to calculate field line helicity in three-dimensional magnetic models, and what it reveals about the formation and eruption of magnetic flux ropes in the corona.
Schedule
Thursday
13:30 - 15:00
13.30
Wilberforce LT-27
© 2023 Royal Astronomical Society