HAO Colloquium - Small-scale dynamics of coronal loops

When (times in MT)
Wed, Sep 14 2022, 2pm - 1 hour
Event Type
Cosima Breu
University of St. Andrews
Building & Room

A large part of the solar corona is composed of bright arcs of confined plasma, the coronal loops. Far from being monolithic cylindrical structures, coronal loops have a finely structured and dynamic interior. With the help of 3D MHD simulations with MURaM, we investigate the energisation and structure of coronal loops in different magnetic topologies and model the resulting observable emission. Simulations with a sufficiently high resolution are necessary to resolve the large range of scales of motions at the solar surface that power the corona. We discuss the connection between different layers of the solar atmosphere and how photospheric motions at the loop footpoints determine the spatial and temporal scales of coronal loop heating.

About the Speaker

Cosima Breu received her Ph.D in Physics from the Georg-August University of Goettingen in March 2022. During her thesis project, she worked on coronal loop simulations with the MURaM code under the guidance of Hardi Peter and Robert Cameron at the Max-Planck-Institute for Solar System Research. In June 2022 she joined the School of Mathematics and Statistics in St. Andrews to work with Professor Ineke De Moortel on wave propagation in the solar atmosphere.