Sources of Solar Energetic Particles
arXiv:1903.08200 · doi:10.1098/rsta.2018.0095
Abstract
Solar Energetic Particles (SEP) are an integral part of the physical processes related with Space Weather. We present a review for the acceleration mechanisms related to the explosive phenomena (flares and/or CMEs) inside the solar corona. For more than 40 years, the main 2D cartoon representing our understanding of the explosive phenomena inside the solar corona remained almost unchanged. The acceleration mechanisms related to solar flares and CMEs also remained unchanged and were part of the same cartoon. In this review, we revise the standard cartoon and present evidence from recent global MHD simulations that supports the argument that explosive phenomena will lead to the spontaneous formation of current sheets in different parts of the erupting magnetic structure. The evolution of the large scale current sheets and their fragmentation will lead to strong turbulence and turbulent reconnection during solar flares and turbulent shocks. In other words, the acceleration mechanism in flares and CME-driven shocks may be the same, and their difference will be the overall magnetic topology, the ambient plasma parameters, and the duration of the unstable driver.
arXiv commentAccepted at Philosophical Transactions A, 2019
References in corpus (41)
- Reconnection in a Weakly Stochastic Field
- Simulations of Ion Acceleration at Non-relativistic Shocks. I. Acceleration Efficiency
- Solar Coronal Jets: Observations, Theory, and Modeling
- Simulations of Ion Acceleration at Non-relativistic Shocks. II. Magnetic Field Amplification
- Stochastic Acceleration by Turbulence
- A Comparative Study Between Eruptive X-class Flares Associated with Coronal Mass Ejections and Confined X-class Flares
- Statistical Analysis of Current Sheets in Three-Dimensional Magnetohydrodynamic Turbulence
- Quantitative Measurements of CME-driven Shocks from LASCO Observations
- Plasma Jets and Eruptions in Solar Coronal Holes: a 3D flux emergence experiment
- Magnetohydrodynamic Modeling of the Solar Eruption on 2010 April 8
- Simulations of Ion Acceleration at Non-relativistic Shocks. III. Particle Diffusion
- Turbulent Reconnection and Its Implications
- Three-Dimensional Simulations of Tearing and Intermittency in Coronal Jets
- Structures in magnetohydrodynamic turbulence: detection and scaling
- The Solar Energetic Particle Event on 2013 April 11: An Investigation of its Solar Origin and Longitudinal Spread
- A three-dimensional study of reconnection, current sheets and jets resulting from magnetic flux emergence in the Sun
- Stochastic Acceleration in Turbulent Electric Fields Generated by 3-D Reconnection
- Particle Acceleration in Multiple Dissipation Regions
- Global Numerical Modeling of Energetic Proton Acceleration in a Coronal Mass Ejection Traveling through the Solar Corona
- Abundances, Ionization States, Temperatures, and FIP in Solar Energetic Particles
- Properties of solar energetic particle events inferred from their associated radio emission
- Magnetohydrodynamic Modeling of a Solar Eruption Associated with X9.3 Flare Observed in Active Region 12673
- Fractional Transport in Strongly Turbulent Plasmas
- Solar Energetic Particles and Associated EIT Disturbances in Solar Cycle 23
- Modelling of proton acceleration in application to a ground level enhancement
- The Properties of Solar Energetic Particle Event-Associated Coronal Mass Ejections Reported in Different CME Catalogs
- The Effect of Coherent Structures on Stochastic Acceleration in MHD Turbulence
- Properties of a Coronal Shock Wave as A Driver of Early SEP Acceleration
- CME Expansion as the Driver of Metric Type II Shock Emission as Revealed by Self-Consistent Analysis of High Cadence EUV Images and Radio Spectrograms
- Particle Acceleration and Fractional Transport in Turbulent Reconnection
- Plasma physical parameters along Coronal Mass Ejection-driven shocks: I observations
- Particle Acceleration in Solar Flares and Associated CME Shocks
- An Investigation of the CME of 3 November 2011 and its Associated Widespread Solar Energetic Particle Event
- Particle Acceleration and Heating in a Turbulent Solar Corona
- The emergence of magnetic flux and its role on the onset of solar dynamic events
- Multiple current sheet systems in the outer heliosphere: Energy release and turbulence
- Synergy of stochastic and systematic energization of plasmas during turbulent reconnection
- Global explicit particle-in-cell simulations of the nonstationary bow shock and magnetosphere
- Stochastic Fermi Energization of Coronal Plasma during explosive magnetic energy release
- Diffusive Shock Acceleration and Turbulent Reconnection
- Radio signatures of solar energetic particles during the 23rd solar cycle
Cited by in corpus (7)
- Observation and Modeling of Solar Jets
- CME Magnetic Structure and IMF Preconditioning Affecting SEP Transport
- Test particle energization of heavy ions in magnetohydrodynamic turbulence
- Introduction to the physics of solar eruptions and their space weather impact
- The magnetic field environment of active region 12673 that produced the energetic particle events of September 2017
- Space weather: the solar perspective -- an update to Schwenn (2006)
- Magnetic Energy Powers the Corona: How We Can Understand its 3D Storage & Release