Spectral Power-law Formation by Sequential Particle Acceleration in Multiple Flare Magnetic Islands

@article{Guidoni2022SpectralPF,
  title={Spectral Power-law Formation by Sequential Particle Acceleration in Multiple Flare Magnetic Islands},
  author={S. E. Guidoni and Judith T. Karpen and C. Richard DeVore},
  journal={The Astrophysical Journal},
  year={2022},
  volume={925}
}
We present a first-principles model of pitch-angle and energy distribution function evolution as particles are sequentially accelerated by multiple flare magnetic islands. Data from magnetohydrodynamic (MHD) simulations of an eruptive flare/coronal mass ejection provide ambient conditions for the evolving particle distributions. Magnetic islands, which are created by sporadic reconnection at the self-consistently formed flare current sheet, contract and accelerate the particles. The particle… 
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