Outputs (43)

Spatially Separated Electron and Proton Beams in a Simulated Solar Coronal Jet (2021)
Journal Article
Pallister, R., Wyper, P. F., Pontin, D. I., DeVore, C. R., & Chiti, F. (2021). Spatially Separated Electron and Proton Beams in a Simulated Solar Coronal Jet. Astrophysical Journal, 923(2), Article 163. https://doi.org/10.3847/1538-4357/ac2e6d

Magnetic reconnection is widely accepted to be a major contributor to nonthermal particle acceleration in the solar atmosphere. In this paper we investigate particle acceleration during the impulsive phase of a coronal jet, which involves bursty reco... Read More about Spatially Separated Electron and Proton Beams in a Simulated Solar Coronal Jet.

Is flare-ribbon fine structure related to tearing in the flare current sheet? (2021)
Journal Article
Wyper, P., & Pontin, D. (2021). Is flare-ribbon fine structure related to tearing in the flare current sheet?. Astrophysical Journal, 920(2), Article 102. https://doi.org/10.3847/1538-4357/ac1943

Observations of solar flare ribbons show significant fine structure in the form of breaking wave-like perturbations and spirals. The origin of this structure is not well understood, but one possibility is that it is related to the tearing instability... Read More about Is flare-ribbon fine structure related to tearing in the flare current sheet?.

The Dynamic Formation of Pseudostreamers (2021)
Journal Article
Scott, R. B., Pontin, D. I., Antiochos, S. K., DeVore, C. R., & Wyper, P. F. (2021). The Dynamic Formation of Pseudostreamers. Astrophysical Journal, 913(1), Article 64. https://doi.org/10.3847/1538-4357/abec4f

Streamers and pseudostreamers structure the corona at the largest scales, as seen in both eclipse and coronagraph white-light images. Their inverted-goblet appearance encloses broad coronal loops at the Sun and tapers to a narrow radial stalk away fr... Read More about The Dynamic Formation of Pseudostreamers.

A Model for the Coupled Eruption of a Pseudostreamer and Helmet Streamer (2021)
Journal Article
Wyper, P., Antiochos, S., DeVore, C., Lynch, B., Karpen, J., & Kumar, P. (2021). A Model for the Coupled Eruption of a Pseudostreamer and Helmet Streamer. Astrophysical Journal, 909(1), Article 54. https://doi.org/10.3847/1538-4357/abd9ca

A highly important aspect of solar activity is the coupling between eruptions and the surrounding coronal magnetic field topology, which determines the trajectory and morphology of the event and can even lead to sympathetic eruptions from multiple so... Read More about A Model for the Coupled Eruption of a Pseudostreamer and Helmet Streamer.

Effects of Pseudostreamer Boundary Dynamics on Heliospheric Field and Wind (2021)
Journal Article
Aslanyan, V., Pontin, D., Wyper, P., Scott, R., Antiochos, S., & DeVore, C. (2021). Effects of Pseudostreamer Boundary Dynamics on Heliospheric Field and Wind. Astrophysical Journal, 909(1), Article 10. https://doi.org/10.3847/1538-4357/abd6e6

Interchange reconnection has been proposed as a mechanism for the generation of the slow solar wind, and a key contributor to determining its characteristic qualities. In this paper we study the implications of interchange reconnection for the struct... Read More about Effects of Pseudostreamer Boundary Dynamics on Heliospheric Field and Wind.

From Pseudostreamer Jets to Coronal Mass Ejections: Observations of the Breakout Continuum (2021)
Journal Article
Kumar, P., Karpen, J. T., Antiochos, S. K., Wyper, P. F., DeVore, C. R., & Lynch, B. J. (2021). From Pseudostreamer Jets to Coronal Mass Ejections: Observations of the Breakout Continuum. Astrophysical Journal, 907(1), https://doi.org/10.3847/1538-4357/abca8b

The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-scale jets to global-scale coronal mass ejections (CMEs). The underlying... Read More about From Pseudostreamer Jets to Coronal Mass Ejections: Observations of the Breakout Continuum.

Plumelets: Dynamic Filamentary Structures in Solar Coronal Plumes (2021)
Journal Article
Uritsky, V., DeForest, C., Karpen, J., DeVore, C., Kumar, P., Raouafi, N., & Wyper, P. (2021). Plumelets: Dynamic Filamentary Structures in Solar Coronal Plumes. Astrophysical Journal, 907(1), https://doi.org/10.3847/1538-4357/abd186

Solar coronal plumes long seemed to possess a simple geometry supporting spatially coherent, stable outflow without significant fine structure. Recent high-resolution observations have challenged this picture by revealing numerous transient, small-sc... Read More about Plumelets: Dynamic Filamentary Structures in Solar Coronal Plumes.

Observations and 3D Magnetohydrodynamic Modeling of a Confined Helical Jet Launched by a Filament Eruption (2019)
Journal Article
Doyle, L., Wyper, P. F., Scullion, E., McLaughlin, J. A., Ramsay, G., & Doyle, J. G. (2019). Observations and 3D Magnetohydrodynamic Modeling of a Confined Helical Jet Launched by a Filament Eruption. Astrophysical Journal, 887(2), Article 246. https://doi.org/10.3847/1538-4357/ab5d39

We present a detailed analysis of a confined filament eruption and jet associated with a C1.5 class solar flare. Multiwavelength observations from the Global Oscillations Network Group and Solar Dynamics Observatory reveal the filament forming over s... Read More about Observations and 3D Magnetohydrodynamic Modeling of a Confined Helical Jet Launched by a Filament Eruption.

First Detection of Plasmoids from Breakout Reconnection on the Sun (2019)
Journal Article
Kumar, P., Karpen, J. T., Antiochos, S. K., Wyper, P. F., & DeVore, C. R. (2019). First Detection of Plasmoids from Breakout Reconnection on the Sun. Astrophysical Journal Letters, 885(1), Article L15. https://doi.org/10.3847/2041-8213/ab45f9

Transient collimated plasma ejections (jets) occur frequently throughout the solar corona, in active regions, quiet Sun, and coronal holes. Although magnetic reconnection is generally agreed to be the mechanism of energy release in jets, the factors... Read More about First Detection of Plasmoids from Breakout Reconnection on the Sun.

Numerical Simulation of Helical Jets at Active Region Peripheries (2019)
Journal Article
Wyper, P. F., DeVore, C. R., & Antiochos, S. K. (2019). Numerical Simulation of Helical Jets at Active Region Peripheries. Monthly Notices of the Royal Astronomical Society, 490(3), 3679-3690. https://doi.org/10.1093/mnras/stz2674

Coronal jets are observed above minority polarity intrusions throughout the solar corona. Some of the most energetic occur on the periphery of active regions where the magnetic field is strongly inclined. These jets exhibit a non-radial propagation i... Read More about Numerical Simulation of Helical Jets at Active Region Peripheries.