Average Magnetic Helicity of Active Regions:
What is the Role of Convection Zone Dynamics?

Lead Investigator: Richard C. Canfield
Institute for Astronomy, U. Hawaii

Other Team Members: Alexei Pevtsov, Frank Hill

> Abstract:

The goal of this study is to determine the relationship of the average magnetic helicity density of active regions to large-scale motions observable in the convection zone directly beneath and around them. The SOI data to be analyzed will comprise several 3-5 day long time series of full-disk and high-resolution Doppler images obtained in the presence of sunspots. This will be used in conjunction with ground-based vector magnetograms. The SOI data analysis will use ring diagrams, while the magnetogram analysis will be done outside of SOI.

Complete text of proposal.