The effects of acoustic-gravity waves on the KI 7699 line

Details The effects of acoustic-gravity waves on the KI 7699 line The effects of acoustic-gravity waves on the KI 7699 line

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..104..259s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 104, April 1986, p. 259-272.

Computer Science

Sound

15

Gravity Waves, Potassium, Resonance Lines, Solar Spectra, Sound Waves, Abundance, Solar Atmosphere, Solar Oscillations, Thermodynamic Equilibrium

Scientific paper

The effects of acoustic-gravity waves of different periods and amplitudes on the K I 7699 solar line profile are discussed. The kinetic equilibrium of the K I line in a static solar model is solved, and the gas-dynamical model and line formation in the presence of waves are outlined. The departures from LTE of the level populations in the K I resonance transition and the presence of temperature and pressure fluctuations correlated to the wave velocity perturbation are taken into account. The time behavior of the synthetic profiles corresponding to 300 s and 30 s waves is extensively discussed. The characteristic redshift induced by the 30 s wave is explained within the framework of the S-S line formation model. The efficiency of waves in producing macro and microturbulence is also considered.

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