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Deciphering the Pre–solar-storm Features of the 2017 September Storm From Global and Local Dynamics (2023)
Journal Article
Raphaldini, B., Dikpati, M., Norton, A. A., Teruya, A. S. W., McIntosh, S. W., Prior, C. B., & MacTaggart, D. (2023). Deciphering the Pre–solar-storm Features of the 2017 September Storm From Global and Local Dynamics. Astrophysical Journal, 958(2), Article 175. https://doi.org/10.3847/1538-4357/acfef0

We investigate whether global toroid patterns and the local magnetic field topology of solar active region (AR) 12673 together can hindcast the occurrence of the biggest X-flares of solar cycle (SC)-24. Magnetic toroid patterns (narrow latitude belts... Read More about Deciphering the Pre–solar-storm Features of the 2017 September Storm From Global and Local Dynamics.

ARTop: an open-source tool for measuring active region topology at the solar photosphere (2023)
Journal Article
Alielden, K., MacTaggart, D., Ming, Q., Prior, C., & Raphaldini, B. (2023). ARTop: an open-source tool for measuring active region topology at the solar photosphere. RAS Techniques and Instruments, 2(1), 398-407. https://doi.org/10.1093/rasti/rzad029

The importance of measuring topological quantities, such as magnetic helicity, in solar observations has long been recognized. In particular, topological quantities play an important role in both understanding and predicting solar eruptions. In this... Read More about ARTop: an open-source tool for measuring active region topology at the solar photosphere.

Direct evidence that twisted flux tube emergence creates solar active regions (2021)
Journal Article
MacTaggart, D., Prior, C., Raphaldini, B., Romano, P., & Guglielmino, S. (2021). Direct evidence that twisted flux tube emergence creates solar active regions. Nature Communications, 12(1), https://doi.org/10.1038/s41467-021-26981-7

The magnetic nature of the formation of solar active regions lies at the heart of understanding solar activity and, in particular, solar eruptions. A widespread model, used in many theoretical studies, simulations and the interpretation of observatio... Read More about Direct evidence that twisted flux tube emergence creates solar active regions.

Geomagnetic reversals at the edge of regularity (2021)
Journal Article
Raphaldini, B., Medeiros, E. S., Ciro, D., Franco, D. R., & Trindade, R. I. (2021). Geomagnetic reversals at the edge of regularity. Physical Review Research, 3(1), https://doi.org/10.1103/physrevresearch.3.013158

Geomagnetic field reversals remain as one of the most intriguing problems in geophysics and are regarded as chaotic processes resulting from a dynamo mechanism. In this article we use the polarity scale data of the last 170 Myrs collected from the oc... Read More about Geomagnetic reversals at the edge of regularity.