activity
20232026
most citedThe 17 April 2021 widespread solar energetic particle event

50 citations · 95 across the 9 of their papers we have counts for

collaborators

9 papers

physics.space-ph2026★ 1 cited

Delayed maximum energy solar energetic particle events: Statistical analysis from Solar Orbiter

R. C. Allen, G. C. Ho, G. M. Mason +9

Investigations of solar energetic particles (SEPs) have long utilized the dispersive nature of onset times, as in, the earlier arrival of higher-energy particles compared to lower-…

astro-ph.SR2026

Shock properties for solar energetic particle events with signatures of inverse velocity arrival

A. Kouloumvakos, D. Lario, G. M. Mason +20

We present a detailed investigation of the shock properties associated with solar energetic particle (SEP) events that exhibit a concave (``nose-like'') shape in their energy spect…

astro-ph.SR2025

Bidirectional anisotropic solar energetic particle events observed by Solar Orbiter

Zheyi Ding, Robert F. Wimmer-Schweingruber, Yu Chen +12

Solar Energetic Particle (SEP) events are critical for understanding particle acceleration and transport in the heliosphere. While most SEP events involve outward streaming particl…

astro-ph.SR2025★ 9 cited

Investigation of Inverse Velocity Dispersion in a Solar Energetic Particle Event Observed by Solar Orbiter

Zheyi Ding, F. Robert Wimmer-Schweingruber, Alexander Kollhoff +15

Inverse velocity dispersion (IVD) events, characterized by higher-energy particles arriving later than lower-energy particles, challenge the classical understanding of SEP events a…

astro-ph.SR2024

Composition variation of the May 16 2023 Solar Energetic Particle Event observed by Solar Orbiter and Parker Solar Probe

Z. G. Xu, C. M. S Cohen, R. A. Leske +13

In this study, we employ the combined charged particle measurements from Integrated Science Investigation of the Sun (\ISOIS) onboard the Parker Solar Probe (PSP) and Energetic Par…

astro-ph.SR2024★ 5 cited

Radial Evolution of ICME-Associated Particle Acceleration Observed by Solar Orbiter and ACE

Malik H. Walker, Robert C. Allen, Gang Li +5

On 2022 March 10, a coronal mass ejection (CME) erupted from the Sun, resulting in Solar Orbiter observations at 0.45 au of both dispersive solar energetic particles arriving prior…

astro-ph.SR2024★ 14 cited

Solar energetic particles injected inside and outside a magnetic cloud: The widespread solar energetic particle event on 2022 January 20

L. Rodríguez-García, R. Gómez-Herrero, N. Dresing +22

Context. On 2022 January 20, the Energetic Particle Detector (EPD) on board Solar Orbiter measured a solar energetic particle (SEP) event showing unusual first arriving particles f…

astro-ph.SR2024★ 16 cited

The multi-spacecraft high-energy solar particle event of 28 October 2021

A. Kouloumvakos, A. Papaioannou, C. O. G. Waterfall +15

Aims. We studied the first multi-spacecraft high-energy solar energetic particle (SEP) event of solar cycle 25, which triggered a ground level enhancement (GLE) on 28 October 2021,…

astro-ph.SR2023★ 50 cited

The 17 April 2021 widespread solar energetic particle event

N. Dresing, L. Rodríguez-García, I. C. Jebaraj +46

Context. A solar eruption on 17 April 2021 produced a widespread Solar Energetic Particle (SEP) event that was observed by five longitudinally well-separated observers in the inner…