186 citations · 273 across the 8 of their papers we have counts for
8 papers
Solar Energetic Particle event onsets at different heliolongitudes: The effect of turbulence in Parker Spiral Geometry
T. Laitinen, S. Dalla, C. O. G. Waterfall +1
Solar energetic particles (SEPs), accelerated during solar eruptions, are observed to rapidly reach a wide heliolongitudinal range in the interplanetary space. To access these loca…
An analytical model of turbulence in Parker spiral geometry and associated magnetic field line lengths
T. Laitinen, S. Dalla, C. O. G. Waterfall +1
Understanding the magnetic connections from the Sun to interplanetary space is crucial for linking in situ particle observations with the solar source regions of the particles. A s…
Modelling shock-like injections of solar energetic particles with 3D test particle simulations
Adam Hutchinson, Silvia Dalla, Timo Laitinen +1
Solar Energetic Particle (SEP) acceleration and injection into interplanetary space during gradual SEP events is thought to take place at Coronal Mass Ejection (CME)-driven shocks.…
The impact of corotation on gradual solar energetic particle event intensity profiles
Adam Hutchinson, Silvia Dalla, Timo Laitinen +1
Corotation of particle-filled magnetic flux tubes is generally thought to have a minor influence on the time-intensity profiles of gradual Solar Energetic Particle (SEP) events. Fo…
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…
Correcting for interplanetary scattering in velocity dispersion analysis of solar energetic particles
T. Laitinen, K. Huttunen-Heikinmaa, E. Valtonen +1
To understand the origin of Solar Energetic Particles (SEPs), we must study their injection time relative to other solar eruption manifestations. Traditionally the injection time i…
Acceleration of Energetic Particles Through Self-Generated Waves in a Decelerating Coronal Shock
Markus Battarbee, Timo Laitinen, Rami Vainio +1
We have developed a simulation model of particle acceleration in coronal shock waves. The model is based on a Monte Carlo method, where particles are traced in prescribed large-sca…
Supermagnetosonic jets behind a collisionless quasi-parallel shock
H. Hietala, T. V. Laitinen, K. Andréeová +7
The downstream region of a collisionless quasi-parallel shock is structured containing bulk flows with high kinetic energy density from a previously unidentified source. We present…