19 citations · 31 across the 11 of their papers we have counts for
11 papers
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…
Hinode EIS Observations of Plasma Composition Evolution and Radiative Cooling of Solar Flare Loops
Teodora Mihailescu, Peter R. Young, David H. Brooks +4
Plasma composition in flaring regions has been shown to have significant spatial and temporal variations, likely driven by dynamical processes that take place as a consequence of t…
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…
Probing the properties of active regions in the solar interface region using full-disk spectroheliograms
Éabha Power, David M. Long, Teodora Mihailescu +1
The composition of plasma in the solar corona is characterised by the First Ionisation Potential (FIP) bias, and is thought to be the result of a ponderomotive force acting in the…
Systematic non-thermal velocity increase preceding soft X-ray flare onset: A large-scale Hinode/EIS study
Andy S. H. To, Abigail Burden, Deborah Baker +12
Non-thermal velocities, derived from spectral line broadening, can provide crucial insights into plasma dynamics before and during solar flares. To systematically study the pre-fla…
Investigating Solar Wind Outflows from Open-Closed Magnetic Field Structures Using Coordinated Solar Orbiter and Hinode Observations
Nawin Ngampoopun, Roberto Susino, David H. Brooks +13
ESA/NASA's Solar Orbiter (SO) allows us to study the solar corona at closer distances and from different perspectives, which helps us to gain significant insights into the origins…
Spatially Resolved Plasma Composition Evolution in a Solar Flare -- The Effect of Reconnection Outflow
Andy S. H. To, David H. Brooks, Shinsuke Imada +6
Solar flares exhibit complex variations in elemental abundances compared to photospheric values. We examine the spatial and temporal evolution of coronal abundances in the X8.2 fla…
Observation of Alfvén Wave Reflection in the Solar Chromosphere: Ponderomotive Force and First Ionization Potential Effect
Mariarita Murabito, Marco Stangalini, J. Martin Laming +7
We investigate the propagation of Alfvén waves in the solar chromosphere, distinguishing between upward and downward propagating waves. We find clear evidence for the reflection of…
Identifying plasma fractionation processes in the chromosphere using IRIS
David M. Long, Deborah Baker, Andy S. H. To +7
The composition of the solar corona differs from that of the photosphere, with the plasma thought to fractionate in the solar chromosphere according to the First Ionisation Potenti…
Intriguing Plasma Composition Pattern in a Solar Active Region: a Result of Non-Resonant Alfvén Waves?
Teodora Mihailescu, David H. Brooks, J. Martin Laming +6
The plasma composition of the solar corona is different from that of the solar photosphere. Elements that have a low first ionisation potential (FIP) are preferentially transported…
Evolution of Plasma Composition in an Eruptive Flux Rope
Deborah Baker, Lucie M. Green, David H. Brooks +8
Magnetic flux ropes are bundles of twisted magnetic field enveloping a central axis. They harbor free magnetic energy and can be progenitors of coronal mass ejections (CMEs), but i…