EIT waves and coronal magnetic field diagnostics

  title={EIT waves and coronal magnetic field diagnostics},
  author={P. F. Chen},
  journal={Science in China Series G: Physics, Mechanics and Astronomy},
  • P. Chen
  • Published 2009
  • Physics
  • Science in China Series G: Physics, Mechanics and Astronomy
Magnetic field in the solar lower atmosphere can be measured by the use of the Zeeman and Hanle effects. By contrast, the coronal magnetic field well above the solar surface, which directly controls various eruptive phenomena, can not be precisely measured with the traditional techniques. Several attempts are being made to probe the coronal magnetic field, such as force-free extrapolation based on the photospheric magnetograms, gyroresonance radio emissions, and coronal seismology based on MHD… Expand

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