The Quiet-Sun Photosphere and Chromosphere

Abstract

The overall structure and the fine structure of the solar photosphere outside active regions are largely understood, except possibly important roles of a turbulent near-surface dynamo at its bottom, internal gravity waves at its top, and small-scale vorticity. Classical 1D static radiation-escape modelling has been replaced by 3D time-dependent MHD simulations that come closer to reality. The solar chromosphere, in contrast, remains ill-understood although its pivotal role in coronal mass and energy loading makes it a principal research area. Its fine structure defines its overall structure, so that hard-to-observe and hard-to-model small-scale dynamical processes are the key to understanding. However, both chromospheric observation and chromospheric simulation presently mature towards the required sophistication. The open-field features seem of greater interest than the easier-to-see closed-field features.

Accepted for special issue "Astrophysical Processes on the Sun" of Phil. Trans. Royal Soc. A, ed. C. Parnell. Note: clicking on the year in a citation opens the corresponding ADS abstract page in the browser

References in corpus (42)

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• The solar magnetic field
• Dynamic Fibrils are driven by Magnetoacoustic Shocks
• High Resolution Observations and Modeling of Dynamic Fibrils
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• Search for high velocities in the disk counterpart of type II spicules
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Cited by in corpus (13)

• Observations of ubiquitous compressive waves in the Sun's chromosphere
• The Magnetic Field in the Solar Atmosphere
• Ellerman bombs: fallacies, fads, usage
• 3D Temperature Mapping of Solar Photospheric Fine Structure Using Ca II H Filtergrams
• Mapping Solar Magnetic Fields from the Photosphere to the Base of the Corona
• The generation and damping of propagating MHD kink waves in the solar atmosphere
• Transverse Oscillations in Slender Ca II H Fibrils Observed with Sunrise/SuFI
• The Appearance of Spicules in High Resolution Observations of Ca II H and H-alpha
• The detection of upwardly propagating waves channelling energy from the chromosphere to the low corona
• The energy of waves in the photosphere and lower chromosphere: IV. Inversion results of Ca II H spectra
• The effects of transients on photospheric and chromospheric power distributions
• Solar extreme ultraviolet variability of the quiet Sun
• Multi-wavelength Fibril Dynamics and Oscillations Above Sunspot - I. Morphological Signature