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Solar physics

Waves galore

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Wave energy has long been proposed to be a source of the hot solar corona and fast solar wind. Direct measurements made by spacecraft have finally established that coronal waves are ubiquitous and can have the required energy. See Letter p.477

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Figure 1: The solar corona as seen in emission at 171 ångströms.

AIA/SDO team

Figure 2: Alfvén waves in two coronal geometries.

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Correspondence to Peter Cargill or Ineke De Moortel.

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Cargill, P., De Moortel, I. Waves galore. Nature 475, 463–464 (2011). https://doi.org/10.1038/475463a

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