36 citations · 218 across the 23 of their papers we have counts for
8 papers · 1 filter
Three-dimensional magnetic reconnection in unipolar regions. A case study of coronal bright points in the Sun
D. Nóbrega-Siverio, F. Moreno-Insertis, A. S. H. To
Magnetic reconnection is a fundamental mechanism underlying the heating and a wide variety of eruptive phenomena in the solar atmosphere; however, characterizing its 3D aspects rem…
Active nests at solar maximum: How nested flux emergence dominated flaring activity and structured the heliosphere
Adam J. Finley, Allan Sacha Brun, Antoine Strugarek +5
Multi-viewpoint observations from near-Earth satellites and ESA's Solar Orbiter enable a global view of the Sun. This continuous coverage is essential for characterising active nes…
Nonthermal line broadening at solar flare footpoints is primarily field-aligned
Andy S. H. To, Alexander J. B. Russell
Magnetic reconnection powers solar and stellar flares, but a full understanding of how the released energy is transported and converted within the solar atmosphere remains elusive.…
Signs of Sulphur fractionation under high magnetic field strength
Dominik Orlovskij, Andy S. H. To, David M. Long
Sulphur, with a first ionisation potential (FIP) of 10.36 eV, lies at the boundary between low- and high-FIP elements, making it particularly sensitive to fractionation processes i…
Chromospheric dynamics and turbulence regulate the solar FIP effect
Andy S. H. To, J. Martin Laming, Jeffrey Reep +1
Elemental abundance variations in the solar corona, commonly characterised by First Ionisation Potential (FIP) bias, provide crucial diagnostics of chromospheric processes. The pon…
Comparing First Ionisation Potential bias diagnostics in the solar atmosphere
Kristena D. Spruksta, David M. Long, Andy S. H. To
Plasma composition in the solar atmosphere differs between the photosphere and corona, producing an observable difference in elemental abundance known as the FIP effect. The FIP ef…
Sulfur fractionation in coronal plumes as observed by Solar Orbiter/SPICE
Slimane Mzerguat, Miho Janvier, Eric Buchlin +4
Coronal plumes are bright, narrow structures rooted in coronal holes that contribute to the solar wind. Their composition, particularly elemental fractionation as a function of fir…
Dynamic modeling of coronal abundances during flares on M-dwarf stars
David H. Brooks, Jeffrey W. Reep, Andy S. H. To +2
Solar atmospheric elemental abundances are now known to vary both in space and time. Dynamic modeling of these changes is therefore necessary to improve the accuracy of radiative h…