Shock Waves

Investigating the Origins of Two Extreme Solar Particle Events: Proton Source Profile and Associated Electromagnetic Emissions
We analyze the high-energy particle emission from the Sun in two extreme solar particle events in which protons are accelerated to …
Leon Kocharov, Silja Pohjolainen, Alexander Mishev, Mike J. Reiner, Jeongwoo Lee, Timo Laitinen, Leonid V. Didkovsky, Victor J. Pizzo, Roksoon Kim, Andreas Klassen, Marian Karlicky, Kyung-Suk Cho, Dale E. Gary, Ilya Usoskin, Eino Valtonen, Rami Vainio
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Solar Interacting Protons Versus Interplanetary Protons in the Core Plus Halo Model of Diffusive Shock Acceleration and Stochastic Re-acceleration
With the first observations of solar ensuremathγ-rays from the decay of pions, the relationship of protons producing ground level …
L. Kocharov, T. Laitinen, R. Vainio, A. Afanasiev, K. Mursula, J. M. Ryan
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Transmission and Emission of Solar Energetic Particles in Semi-transparent Shocks
While major solar energetic particle (SEP) events are associated with coronal mass ejection (CME)-driven shocks in solar wind, accurate …
Leon Kocharov, Timo Laitinen, Ilya Usoskin, Rami Vainio
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The Effect of Turbulence Intermittence on the Emission of Solar Energetic Particles by Coronal and Interplanetary Shocks
Major solar energetic particle events are associated with shock waves in solar corona and solar wind. Fast scattering of charged …
Leon Kocharov, Timo Laitinen, Rami Vainio
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Injection of thermal and suprathermal seed particles into coronal shocks of varying obliquity
Context. Diffusive shock acceleration in the solar corona can accelerate solar energetic particles to very high energies. Acceleration …
M. Battarbee, R. Vainio, T. Laitinen, H. Hietala
Cite DOI arXiv
Acceleration of Energetic Particles Through Self-Generated Waves in a Decelerating Coronal Shock
We have developed a simulation model of particle acceleration in coronal shock waves. The model is based on a Monte Carlo method, where …
M. Battarbee, T. Laitinen, R. Vainio, N. Agueda
Cite DOI arXiv
Gradual Solar Energetic Particle Event Associated with a Decelerating Shock Wave
On 2000 April 4-6 the Energetic and Relativistic Nuclei and Electron particle telescope on the Solar and Heliospheric Observatory …
L. Kocharov, T. Laitinen, A. Al-Sawad, O. Saloniemi, E. Valtonen, M. J. Reiner
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Simulations of coronal shock acceleration in self-generated turbulence
We have recently presented a numerical model to simulate the acceleration and transport of energetic particles at coronal shock waves, …
R. Vainio, T. Laitinen
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Monte Carlo Simulations of Coronal Diffusive Shock Acceleration in Self-generated Turbulence
We report on Monte Carlo simulations of solar energetic particle (SEP) acceleration at quasi-parallel coronal shocks under the …
R. Vainio, T. Laitinen
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Interplanetary and Interacting Protons Accelerated in a Parallel Shock Wave
We present a test-particle model of diffusive shock acceleration on open coronal field lines based on one-dimensional diffusion- …
R. Vainio, L. Kocharov, T. Laitinen
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