47 citations · 220 across the 8 of their papers we have counts for
5 papers · 1 filter
Does Diffusive Shock Acceleration Reach Steady State? Insights from a Near-Sun Shock Observed by Parker Solar Probe
Immanuel Christopher Jebaraj, Mikhail Malkov, Nicolas Wijsen +7
Collisionless shocks accelerate particles at a rate set by the diffusion coefficient of those particles in waves they themselves generate. Theory fixes that coefficient only in ste…
Towards advanced forecasting of solar energetic particle events with the PARASOL model
Alexandr Afanasiev, Nicolas Wijsen, Rami Vainio
Gradual solar energetic particle (SEP) events are generally attributed to the particle acceleration in shock waves driven by coronal mass ejections (CMEs). Space-weather effects of…
Self-consistent modeling of the energetic storm particle event of November 10, 2012
A. Afanasiev, R. Vainio, D. Trotta +4
It is thought that solar energetic ions associated with coronal/interplanetary shock waves are accelerated to high energies by the diffusive shock acceleration mechanism. For this…
Modelling of proton acceleration in application to a ground level enhancement
A. Afanasiev, R. Vainio, A. P. Rouillard +3
The source of high-energy protons (>500 MeV) responsible for the so-called ground level enhancements (GLEs) remains an open question in solar physics. One of the candidates is a sh…
Why is solar cycle 24 an inefficient producer of high-energy particle events?
Rami Vainio, Osku Raukunen, Allan J. Tylka +2
The aim of the study is to investigate the reason for the low productivity of high-energy SEPs in the present solar cycle. We employ scaling laws derived from diffusive shock accel…