Event Details

Observations of decaying and decay-less kink oscillations in the solar corona

Abstract: Fast kink-mode oscillations of solar coronal loops, observed as large amplitude and rapidly decaying transverse displacements, are a well-understood wave mode used for probing the plasma conditions in the solar atmosphere. This is known as coronal seismology.

The simultaneous detection of multiple harmonics can provide more information, allowing one to better match the observed dispersion with that predicted by theory. The same is true for the similar but far more enigmatic decay-less oscillations, whose transverse displacements are much smaller amplitude and therefore usually require additional processing to detect. In this talk I will discuss observations I have made of both these modes of oscillation, and their higher harmonics. Since coronal seismology is such a rapidly developing field, I will try and place these results in context with the current literature and offer some outlook on the use of these wave modes in the future.

If someone from outside of the SPP group would like to join the webinar, please send a request to w.gould@lancaster.ac.uk