Acceleration and Release of Particles from the Corona

  • Leonty I. Miroshnichenko
Part of the Astrophysics and Space Science Library book series (ASSL, volume 260)


From above consideration it appears that existing models of particle acceleration at the Sun are still far from complete and self-consistent. In particular, a question remains if there are the continuous acceleration and/or long-time trapping of energetic particles in the extended coronal structures? In this context, a new paradigm raised of particle acceleration in different sources at or near the Sun — in solar flares, coronal mass ejections (CMEs), coronal and/or interplanetary shocks, etc. This idea has been developed in a series of recent studies (see, e.g., Cliver, 1996; Kahler, 1996; Reames, 1996, and references therein). It turned out to be very fruitful for understanding many energetic solar phenomena. Nevertheless, a number of important unanswered questions remain, and the most keen of them is: Where and how solar particles are accelerated to very high energies up to ~ 100 GeV? Therefore, it is necessary to discuss some new approaches to the problem, in particular, a possibility of multi-step (multi-source) particle acceleration in the extended coronal structures (loops, streamers, CMEs, etc.).


Interplanetary Magnetic Field Neutron Monitor Solar Energetic Particle Event Relativistic Proton Solar Maximum Mission 
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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • Leonty I. Miroshnichenko
    • 1
    • 2
  1. 1.IZMIRANTroitsk, Moscow RegionRussia
  2. 2.UNAMMexico

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