Abstract
The inversion of the radiative transfer equation has been applied to a time series of low spatial resolution Ki 7699 Å line spectra, allowing us to obtain a sequence of instantaneous models which are compared to the mean one to derive the 5-min oscillation stratification. The resulting models are reliable from log τ ≃ 0 to log τ ≃ -3.5. The increase of the velocity oscillation amplitude towards higher photospheric layers has been confirmed and quantified. Significant oscillation is observed in temperature.
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Rodríguez Hidalgo, I., Ruiz Cobo, B. & Collados, M. Stratification of the 5-min oscillation through the solar photosphere. Solar Physics 172, 77–83 (1997). https://doi.org/10.1023/A:1004991715924
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DOI: https://doi.org/10.1023/A:1004991715924