Comparative study of electric currents and energetic particle fluxes in a solar flare and Earth magnetospheric substorm
arXiv:2105.03772 · doi:10.3847/1538-4357/ac2dfc
Abstract
Magnetic field-line reconnection is a universal plasma process responsible for the conversion of magnetic field energy to the plasma heating and charged particle acceleration. Solar flares and Earth's magnetospheric substorms are two most investigated dynamical systems where magnetic reconnection is believed to be responsible for global magnetic field reconfiguration and energization of plasma populations. Such a reconfiguration includes formation of a long-living current systems connecting the primary energy release region and cold dense conductive plasma of photosphere/ionosphere. In both flares and substorms the evolution of this current system correlates with formation and dynamics of energetic particle fluxes. Our study is focused on this similarity between flares and substorms. Using a wide range of datasets available for flare and substorm investigations, we compare qualitatively dynamics of currents and energetic particle fluxes for one flare and one substorm. We showed that there is a clear correlation between energetic particle bursts (associated with energy release due to magnetic reconnection) and magnetic field reconfiguration/formation of current system. We then discuss how datasets of in-situ measurements in the magnetospheric substorm can help in interpretation of datasets gathered for the solar flare.
References in corpus (19)
- The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Overview and Performance
- Impulsive phase flare energy transport by large-scale Alfven waves and the electron acceleration problem
- High-resolution observations of flare precursors in the low solar atmosphere
- The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Optimization of the Spectral Line Inversion Code
- Above-the-loop-top Oscillation and Quasi-periodic Coronal Wave Generation in Solar Flares
- 3D Radio and X-Ray Modeling and Data Analysis Software: Revealing Flare Complexity
- Defining and resolving current systems in geospace
- Magnetic Reconnection During the Post-Impulsive Phase of a Long-Duration Solar Flare: Bi-Directional Outflows as a Cause of Microwave and X-ray Bursts
- 3D magnetic reconnection and its application to solar flares
- A Compact Source for Quasi-Periodic Pulsation in an M-class Solar Flare
- Comparative Analysis of Non-thermal Emissions and Study of Electron Transport in a Solar Flare
- Thermodynamical Evolution of Supra-Arcade Downflows
- Successive Homologous Coronal Mass Ejections driven by shearing and converging motions in solar active region NOAA 12371
- Three-dimensional Forward-fit Modeling of the Hard X-Ray and the Microwave Emissions of the 2015 June 22 M6.5 Flare
- Generation of electric currents in the chromosphere via neutral-ion drag
- Transient rotation of photospheric vector magnetic fields associated with a solar flare
- An Extension of the Theory of Kinematic MHD Models of Collapsing Magnetic Traps to 2.5D with shear flow and to 3D
- Solar Active Region Electric Currents Before and During Eruptive Flares
- Particle energisation in a collapsing magnetic trap model: the relativistic regime