First Solar Orbiter observation of a dark halo in the solar atmosphere

Solar Orbiter First Results (Nominal Mission Phase)

Open Access

Fig. 5.

Intensity fluctuations (in DN/s) of the vertical cut V1 shown in Figs. 2 and 3. The intensity profiles (black lines) are 1 min averages and shown at a 10 min interval. The red line is the standard deviation (normalized to the mean) of the cut for the 1 hour HRI_EUV time series.

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