172 citations · 703 across the 17 of their papers we have counts for
13 papers · 1 filter
Modelling the transport of relativistic solar protons along a heliospheric current sheet during historic GLE events
Charlotte O. G. Waterfall, Silvia Dalla, Timo Laitinen +2
There are many difficulties associated with forecasting high-energy solar particle events at Earth. One issue is understanding why some large solar eruptive events trigger ground l…
3D propagation of relativistic solar protons through interplanetary space
S. Dalla, G. De Nolfo, A. Bruno +5
Context. Solar Energetic Particles (SEPs) with energy in the GeV range can propagate to Earth from their acceleration region near the Sun and produce Ground Level Enhancements (GLE…
Time dependence of Fe/O ratio within a 3D Solar Energetic Particle propagation model including drift
S. Dalla, M. S. Marsh, P. Zelina +1
Context. The intensity profiles of iron and oxygen in Solar Energetic Particle (SEP) events often display differences that result in a decreasing Fe/O ratio over time. The physical…
Solar energetic particle access to distant longitudes through turbulent field-line meandering
T. Laitinen, A. Kopp, F. Effenberger +2
Context. Current solar energetic particle (SEP) propagation models describe the effects of interplanetary plasma turbulence on SEPs as diffusion, using a Fokker-Planck (FP) equatio…
Drift-induced deceleration of Solar Energetic Particles
S. Dalla, M. S. Marsh, T. Laitinen
We investigate the deceleration of Solar Energetic Particles (SEPs) during their propagation from the Sun through interplanetary space, in the presence of weak to strong scattering…
Relationship between Solar Energetic Particles and Properties of Flares and CMEs: Statistical Analysis of Solar Cycle 23 Events
M. Dierckxsens, K. Tziotziou, S. Dalla +5
A statistical analysis of the relationship between solar energetic particles (SEPs) and properties of solar flares and coronal mass ejections (CMEs) is presented. SEP events during…