The Dynamic Solar Corona in X-Rays with Yohkoh

  • Saku Tsuneta
Part of the NATO ASI Series book series (ASIC, volume 481)

Abstract

Yohkoh is revolutionizing our understanding of the solar corona and the behavior of magnetized plasmas in general. It appears that all the transient heating, including solar flares, which have time scales of 10–100 Alfvén transit times, is due to magnetic reconnection. This transient heating is sometimes associated with global structural changes in the coronal magnetic fields. Magnetic reconnection with its associated slow shocks is a powerful engine to convert magnetic energy to plasma kinetic and thermal energies. The Yohkoh observations also show the existence of steadily heated plasmas with temperature of 2–4 MK, both in active regions and in the quiet Sun. The mechanism of the steady heating has not yet been understood.

Keywords

Solar Phys Solar Flare Coronal Hole Magnetic Reconnection Solar Corona 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Saku Tsuneta
    • 1
  1. 1.Institute of AstronomyUniversity of TokyoMitaka city, TokyoJapan

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