Presentasjon av masteroppgave: Ingrid Marie Kjelseth

Intensity Contrast as a Function of Underlying Magnetic Field Through the Solar Atmosphere


This thesis investigates the relationship between the intensity contrast and the photospheric line-of-sight magnetic field. The high resolution observations are from the Swedish Solar Observatory (SST), the Solar Dynamics Observatory (SDO), Atacama Large Millimeter Array (ALMA) and the Interface Region Imaging Spectrograph (IRIS).

The aim of this research is to understand solar radiation better as it has been shown to largely influence Earth climate. From analysis of the variations of this relationship between various spectral lines in both active and quiet solar regions, one can find a correlation for the dependency of the line-of-sight magnetic field. The power law yields a better model for the dependency than that of the logarithmic model, by comparing the amount of data that was fitted with each of these. This opposes the results of Kahil et al. 2017, whose work is central in this thesis.


Veileder: Professor Luc Rouppe van der Voort, Institutt for teoretisk astrofysikk, UiO

Medveileder: Forsker Shahin Jafarzadeh, Institutt for teoretisk astrofysikk, UiO

Intern sensor: Professor Øystein Elgarøy, Institutt for teoretisk astrofysikk, UiO

Ekstern sensor: Associate Professor Jaime de la Cruz Rodriguez, Universitetet i Stockholm

Publisert 19. juni 2020 09:56 - Sist endret 26. feb. 2021 14:25