Magnetic Perturbations in a Sunspot Chromosphere Linked to Plasma Fractionation in the Corona | Deborah Baker
Mullard Space Science Laboratory (MSSL), University College London, UK
Natural Sciences (Astrophysics and Astrononmy)
Element abundance signatures have long been used as tracers of physical processes throughout astrophysics. Understanding the spatial and temporal variations in the composition of the solar corona provides insight into how matter and energy flow from the solar chromosphere out into the heliosphere as well as from the chromospheres of solar-type stars into their astrospheres. In this work, we investigate the spatial distribution of highly varying plasma composition around one of the largest sunspots of solar cycle 24. Observations of the photosphere, chromosphere, and corona are brought together with magnetic field modeling of the sunspot in order to probe the conditions that regulate the degree of plasma fractionation within loop populations of differing connectivities. We find that, in the
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