On the Interaction of Solar Rotational Discontinuities with a Contact Discontinuity Inside the Solar Transition Region as a Source of Plasma Heating in the Solar Corona

Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 30)

Abstract

We consider the self-similar MHD problem of the oblique interference of a solar rotational (Alfven) discontinuity A and a stationary contact discontinuity C. The interaction between A and C is studied for typical conditions in the solar corona. Since solar Alfven waves observed in the solar plasma are numerous, prerequisites exist for the formation of a solar rotational discontinuity that propagates from the chromosphere through the transition region to the corona. Dissipative slow MHD shock waves with insignificant variation of the magnetic field also appear due to the refraction of the solar non-dissipative rotational discontinuities against a contact discontinuity inside the transition region. It is supposed that a real source of plasma heating may exist in the high solar corona due to the well-known mechanism of Landau damping of the dissipative slow MHD shock waves. Frequently observed explosive events may also be triggered in the solar chromospheric plasma. Thereby, we suggest a new model of the coronal plasma heating.

Keywords

Shock Wave Solar Wind Magnetic Field Strength Solar Corona Rarefaction Wave 
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.

Notes

Acknowledgements

This work is carried out in the frame of the Program 15 of the OFN of the Russian Academy of Sciences and with a partial support of the RFFI project No. 11-01-00235.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Central Astronomical Observatory at Pulkovo of Russian Academy of SciencesSt. PetersburgRussia
  2. 2.Moscow State Industrial UniversityMoscowRussia

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