76 citations · 303 across the 13 of their papers we have counts for
13 papers
Interplay of large-scale drift and turbulence in the heliospheric propagation of solar energetic particles
T. Laitinen, S. Dalla
The gradient and curvature of the Parker spiral interplanetary magnetic field give rise to curvature and gradient guiding centre drifts on cosmic rays. The plasma turbulence presen…
Detection asymmetry in solar energetic particle events
S. Dalla, A. Hutchinson, R. A. Hyndman +6
Context. Solar energetic particles (SEPs) are detected in interplanetary space in association with solar flares and coronal mass ejections (CMEs). The magnetic connection between t…
Multi-spacecraft observations of the decay phase of solar energetic particle events
R. A. Hyndman, S. Dalla, T. Laitinen +3
Context: Parameters of solar energetic particle (SEP) event profiles such as the onset time and peak time have been researched extensively to obtain information on acceleration and…
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…
Forecasting >300 MeV SEP events: Extending SPARX to high energies
Charlotte O. G. Waterfall, Silvia Dalla, Mike S. Marsh +2
The forecasting of solar energetic particles (SEPs) is a prominent area of space weather research. Numerous forecasting models exist that predict SEP event properties at proton ene…
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…
From Sun to interplanetary space: What is the pathlength of Solar Energetic Particles?
T. Laitinen, S. Dalla
Solar energetic particles (SEPs), accelerated during solar eruptions, propagate in turbulent solar wind before being observed with in situ instruments. In order to interpret their…
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…
SPARX: a modelling system for Solar Energetic Particle Radiation Space Weather forecasting
M. S. Marsh, S. Dalla, M. Dierckxsens +2
The capability to predict the parameters of an SEP event such as its onset, peak flux, and duration is critical to assessing any potential space weather impact. We present a new fl…
Drift-induced perpendicular transport of Solar Energetic Particles
M. S. Marsh, S. Dalla, J. Kelly +1
Drifts are known to play a role in galactic cosmic ray transport within the heliosphere and are a standard component of cosmic ray propagation models. However, the current paradigm…
Solar Energetic Particle drifts in the Parker spiral
S. Dalla, M. S. Marsh, J. Kelly +1
Drifts in the Parker spiral interplanetary magnetic field are known to be an important component in the propagation of galactic cosmic rays, while they are thought to be negligible…
Energetic Particle Diffusion In Structured Turbulence
Timo Laitinen, Silvia Dalla, James Kelly
In the full-orbit particle simulations of energetic particle transport in plasmas, the plasma turbulence is typically described as a homogeneous superposition of linear Fourier mod…
Cross-Field Transport of Solar Energetic Particles in a Large-Scale Fluctuating Magnetic Field
James Kelly, Silvia Dalla, Timo Laitinen
The trajectories of Solar Energetic Particles (SEPs) in an Interplanetary Magnetic Field (IMF) exhibiting large-scale fluctuations due to footpoint motions originating in the photo…