Speaker
Description
Transverse kink oscillations have long been observed in the corona and in closed magnetic loops especially. Although their properties are quite well-known now it is still rather unclear how they manage to sustain themselves over quite a long duration, with open questions regarding their driver and excitation mechanism. In this talk I will give an overview over the different ideas/theories that discuss the role of photospheric driving in the generation of kink oscillations. Unique observation datasets are exploited, coordinated between the Solar Orbiter (SolO) mission and the Swedish 1-m Solar Telescope (SST), providing high-cadence and high-resolution diagnostics in the photosphere, chromosphere and corona. A quantification of the photospheric dynamics is made at the footpoint of oscillating coronal loops using SST/CRISP data. A link is then made with the properties of the coronal loop oscillations detected in SolO/EUI/HRI images. Finally, I will discuss the implications of this work on the driving and excitation mechanism of kink oscillations, and future perspectives.
| Sessions | Wave generation, energy transport, dissipation and heating |
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