On the dynamics of the chromosphere above sunspots

Details On the dynamics of the chromosphere above sunspots On the dynamics of the chromosphere above sunspots

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...81..245z&link_type=abstract

Solar Physics, vol. 81, Dec. 1982, p. 245-251.

Physics

9

Brightness Distribution, Chromosphere, Radiant Flux Density, Solar Oscillations, Solar Spectra, Sunspots, Calcium, H Alpha Line, Magnetohydrodynamic Waves, Plasma Resonance, Potassium, Stellar Spectrophotometry, Umbras

Scientific paper

The brightness oscillations of a sunspot umbra in the H-alpha and Ca(+)
K lines are studied. The observational results are explained in terms of
the resonance theory of slow-mode magnetohydrodynamic waves in the
sunspot chromosphere. The thickness of the chromosphere above a sunspot
varies quasi-periodically from 420 km to 1000 km.

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