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Quiet Photosphere and Chromosphere

  • J. M. Beckers
Part of the Astrophysics and Space Science Library book series (ASSL, volume 69)

Abstract

The ‘quiet Sun’ is not quiet in the sense that it is free of all disturbance; over the whole surface the fine structures (granulation, spicules) are continuously changing, waves and oscillations occur and large-scale patterns (supergranulation, chromospheric network) evolve. The characteristics of the quiet Sun are that the overall pattern of its fine structures is statistically uniform and/or stationary, that there is no (conspicuous) enhancement or reduction of radiation and that there is no extended magnetic flux concentration (see Figure 3.3). Only at very low resolution (≳l0″) does the quiet Sun really appear quiet.

Keywords

Solar Phys Solar Disk Solar Limb Photospheric Magnetic Field Balmer Line 
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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© D. Reidel Publishing Company, Dordrecht, Holland 1977

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  • J. M. Beckers

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