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Schüssler, Manfred; Shelyag, Sergiy; Berdyugina, Svetlana; Vögler, Alexander; Solanki, Sami K. (2003)
Publisher: IOP Publishing
Languages: English
Types: Article
Subjects: F500, F300, G100

Classified by OpenAIRE into

arxiv: Astrophysics::Solar and Stellar Astrophysics
Using realistic ab initio simulations of radiative magnetoconvection, we show that the bright structures in images taken in the "G band," a spectral band dominated by lines of the CH molecule, precisely outline small-scale concentrations of strong magnetic fields on the visible solar surface. The brightening is caused by a depletion of CH molecules in the hot and tenuous magnetic structures, thus confirming the model of radiatively heated magnetic flux concentrations. These results provide a firm basis for observational studies of the evolution and dynamics of the small-scale solar magnetic field derived through "proxy magnetometry" with G-band images.
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