Physics - Space Physics

Modeling the Transport of Relativistic Solar Protons along a Heliospheric Current Sheet during Historic GLE Events
Charlotte O. G. Waterfall, Silvia Dalla, Timo Laitinen, Adam Hutchinson, Mike Marsh
Cite DOI arXiv
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
From Sun to Interplanetary Space: What is the Pathlength of Solar Energetic Particles?
Solar energetic particles (SEPs), accelerated during solar eruptions, propagate in turbulent solar wind before being observed with in …
T. Laitinen, S. Dalla
Cite DOI arXiv
Forecasting Solar Energetic Particle Fluence with Multi-Spacecraft Observations
Forecasting Solar Energetic Particle (SEP) fluence, as integrated over an SEP event, is an important element when estimating the effect …
T. Laitinen, S. Dalla, M. Battarbee, M. S. Marsh
Cite DOI arXiv
The effect of turbulence strength on meandering field lines and Solar Energetic Particle event extents
Insights into the processes of Solar Energetic Particle (SEP) propagation are essential for understanding how solar eruptions affect …
Timo Laitinen, Frederic Effenberger, Andreas Kopp, Silvia Dalla
Cite DOI arXiv
Early propagation of energetic particles across the mean field in turbulent plasmas
Propagation of energetic particles across the mean field direction in turbulent magnetic fields is often described as spatial …
T. Laitinen, S. Dalla, D. Marriott
Cite DOI arXiv
Energetic Particle Transport across the Mean Magnetic Field: Before Diffusion
Current particle transport models describe the propagation of charged particles across the mean field direction in turbulent plasmas as …
T. Laitinen, S. Dalla
Cite DOI arXiv
Solar energetic particle access to distant longitudes through turbulent field-line meandering
Context. Current solar energetic particle (SEP) propagation models describe the effects of interplanetary plasma turbulence on SEPs as …
T. Laitinen, A. Kopp, F. Effenberger, S. Dalla, M. S. Marsh
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
Correcting for Interplanetary Scattering in Velocity Dispersion analysis of Solar Energetic Particles
To understand the origin of Solar Energetic Particles (SEPs), we must study their injection time relative to other solar eruption …
T. Laitinen, K. Huttunen-Heikinmaa, E. Valtonen, S. Dalla
Cite DOI arXiv