Abstract
Observations of the rms intensity fluctuations in the continuum obtained by Pravdjuk et al. (Solnechnye Dannye, No. 2, p. 70, 1974) from white-light photographs made with the Soviet Stratospheric Solar Observatory are analyzed to obtain a horizontal temperature-fluctuation amplitude as a function of depth. The results indicate that temperature fluctuations increase with depth monotonically from a small value at τ5000≅0.5 (cf. Figure 2). The initial rise of ΔT appears quite steep, having a slope of approximately 20 K km−1. The model of Wilson (Solar Phys. 9, 303, 1969) is incompatible with the data. Convective flux in the present model is approximately 6% of the total flux at τ5000 = 1.
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Altrock, R.C. The horizontal variation of temperature in the low solar photosphere. Sol Phys 47, 517–523 (1976). https://doi.org/10.1007/BF00154760
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DOI: https://doi.org/10.1007/BF00154760