Fig. 7.
Statistical association of photospheric horizontal magnetic field and the vertical component of the Poynting flux. The histogram displayed in logarithmic scaling is a joint probability density function between horizontal magnetic field strength and the vertical component of the Poynting flux at the photosphere, sampled for a period of 15 min. The two quantities roughly correspond to the average τ500 = 1 surface. See Sect. 3 for details.
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