Sun: activity

3D propagation of relativistic solar protons through interplanetary space
Context. Solar energetic particles (SEPs) with energy in the GeV range can propagate to Earth from their acceleration region near the …
S. Dalla, G. A. de Nolfo, A. Bruno, J. Giacalone, T. Laitinen, S. Thomas, M. Battarbee, M. S. Marsh
Cite DOI arXiv
Time dependence of Fe/O ratio within a 3D solar energetic particle propagation model including drift
Context. The intensity profiles of iron and oxygen in Solar Energetic Particle (SEP) events often display differences that result in a …
S. Dalla, M. S. Marsh, P. Zelina, T. Laitinen
Cite DOI arXiv
Drift-induced Deceleration of Solar Energetic Particles
We investigate the deceleration of solar energetic particles (SEPs) during their propagation from the Sun through interplanetary space, …
S. Dalla, M. S. Marsh, T. Laitinen
Cite DOI arXiv
Drift-induced Perpendicular Transport of Solar Energetic Particles
Drifts are known to play a role in galactic cosmic ray transport within the heliosphere and are a standard component of cosmic ray …
M. S. Marsh, S. Dalla, J. Kelly, T. Laitinen
Cite DOI arXiv
Cross-field Transport of Solar Energetic Particles in a Large-scale Fluctuating Magnetic Field
The trajectories of solar energetic particles in an interplanetary magnetic field exhibiting large-scale fluctuations due to footpoint …
J. Kelly, S. Dalla, T. Laitinen
Cite DOI arXiv