Coronal Hole Evolution: Theory, Simulations, and Observations

 

Emily Mason

Research Scientist
Predictive Science Inc

Wed, February 22, 2023 - 4:00 PM
Presented via Zoom

ID: 81983710257
passcode: 575422
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https://cua.zoom.us/j/81983710257?pwd=dnZxeWxUcks3N1NiWXZtMWtQSGowUT09

Coronal holes are defined as regions on the Sun where the magnetic field is only rooted in the Sun at one end, and are termed “holes” because they were first observed in X-rays, where the low plasma density makes them appear dark. These regions are very persistent, often lasting months or even years. The fast solar wind originates here, and it is theorized that the slow solar wind may emanate from coronal holes’ complex boundary regions, where the open and closed magnetic fields interact. In this talk, I will cover some of the history and theory of coronal hole physics. I will present my work with Vadim Uritsky analyzing the structure of coronal hole boundaries, as well as the implications of Predictive Science’s recent time-dependent thermodynamic magnetohydrodynamic model of the Sun, which shows coronal hole evolution for a full month.

Refreshments served at 3:45 PM

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