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3 results

  • 14 - Solar Applications of MHD Wave Theory

  • Bernard Roberts, University of St Andrews, Scotland
  • Book:
    MHD Waves in the Solar Atmosphere
    Published online:
    15 July 2019
    Print publication:
    18 July 2019, pp 434-488

  • Summary

    This chapter aims to apply the results of earlier chapters to solar observations, considering both historical cases and recently obtained ground- or space-based observations of the Sun’s atmosphere. Coronal loops, prominences and sunspots are used to illustrate the various theoretical results. Attention to historical contributions is also part of the treatment. The founding of coronal seismology is explored and some results are applied to coronal loops. Results for resonant absorption theory are illustrated. Prominences are also explored from the viewpoint of oscillation theory, illustrating some results of prominence seismology. Finally, sunspots are discussed in the context of slow mode propagation.

MHD Waves in the Solar Atmosphere
  • Bernard Roberts
  • Published online:
    15 July 2019
    Print publication:
    18 July 2019
  • This volume presents a full mathematical exposition of the growing field of coronal seismology which will prove invaluable for graduate students and researchers alike. Roberts' detailed and original research draws upon the principles of fluid mechanics and electromagnetism, as well as observations from the TRACE and SDO spacecraft and key results in solar wave theory. The unique challenges posed by the extreme conditions of the Sun's atmosphere, which often frustrate attempts to develop a comprehensive theory, are tackled with rigour and precision; complex models of sunspots, coronal loops and prominences are presented, based on a magnetohydrodynamic (MHD) view of the solar atmosphere, and making use of Faraday's concept of magnetic flux tubes to analyse oscillatory phenomena. The rapid rate of progress in coronal seismology makes this essential reading for those hoping to gain a deeper understanding of the field.

  • Progress in coronal seismology

  • B. Roberts
  • Journal:
    Proceedings of the International Astronomical Union / Volume 3 / Issue S247 / September 2007
    Published online by Cambridge University Press:
    01 September 2007, pp. 3-19
    Print publication:
    September 2007
    • Article
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  • Coronal seismology is now a well developed area of solar physics, even though many questions remain for resolution. Here we take stock of the progress made since the first direct imaging of oscillating loops was achieved through TRACE spacecraft observations in 1999.