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A nonpotential model for the Sun's open magnetic flux (2010)
Journal Article
Yeates, A., Mackay, D., van Ballegooijen, A., & Constable, J. (2010). A nonpotential model for the Sun's open magnetic flux. Journal of Geophysical Research: Space Physics, 115(A9), https://doi.org/10.1029/2010ja015611

[1] Measurements of the interplanetary magnetic field (IMF) over several solar cycles do not agree with computed values of open magnetic flux from potential field extrapolations. The discrepancy becomes greater around solar maximum in each cycle when... Read More about A nonpotential model for the Sun's open magnetic flux.

A double-ring algorithm for modeling solar active regions: Unifying kinematic dynamo models and surface flux-transport simulations (2010)
Journal Article
Muñoz-Jaramillo, A., Nandy, D., Martens, P., & Yeates, A. (2010). A double-ring algorithm for modeling solar active regions: Unifying kinematic dynamo models and surface flux-transport simulations. Astrophysical Journal, 720(1), https://doi.org/10.1088/2041-8205/720/1/l20

The emergence of tilted bipolar active regions (ARs) and the dispersal of their flux, mediated via processes such as diffusion, differential rotation, and meridional circulation, is believed to be responsible for the reversal of the Sun's polar field... Read More about A double-ring algorithm for modeling solar active regions: Unifying kinematic dynamo models and surface flux-transport simulations.

Solar cycle variation of magnetic flux ropes in a quasi-static coronal evolution model (2010)
Journal Article
Yeates, A., Constable, J., & Martens, P. (2010). Solar cycle variation of magnetic flux ropes in a quasi-static coronal evolution model. Solar Physics, 263(1-2), 121-134. https://doi.org/10.1007/s11207-010-9546-z

The structure of electric current and magnetic helicity in the solar corona is closely linked to solar activity over the 11-year cycle, yet is poorly understood. As an alternative to traditional current-free “potential-field” extrapolations, we inves... Read More about Solar cycle variation of magnetic flux ropes in a quasi-static coronal evolution model.

Comparison of a global magnetic evolution model with observations of coronal mass ejections (2010)
Journal Article
Yeates, A., Attrill, G., Nandy, D., Mackay, D., Martens, P., & van Ballegooijen, A. (2010). Comparison of a global magnetic evolution model with observations of coronal mass ejections. Astrophysical Journal, 709(2), https://doi.org/10.1088/0004-637x/709/2/1238

The relative importance of different initiation mechanisms for coronal mass ejections (CMEs) on the Sun is uncertain. One possible mechanism is the loss of equilibrium of coronal magnetic flux ropes formed gradually by large-scale surface motions. In... Read More about Comparison of a global magnetic evolution model with observations of coronal mass ejections.