event
Wednesday 10 Oct 2018: Mapping the Chromospheric Resonance Cavity above Sunspots
Dr. Ben Snow - University of Exeter
Harrison 170 13:30-15:30
The temperature and density profile above a sunspot allows for the existence of a chromospheric resonator. Waves are partially reflected and partially transmitted at the steep temperature gradients at the photosphere and transitions region, allowing waves to become trapped and resonate in the chromospheric cavity. It has been shown in previous work that thermal properties of the sunspot can be determined by analysing the distribution of energy in the frequency spectra. We perform data-driven simulation of a chromospheric resonator to map the chromospheric temperature profile.
