FENRIR: A statistical model of stellar variability - I. A physics-based, fast Gaussian process model to represent stellar activity and perform statistical Doppler imaging

Open Access

Fig. 18

Absolute value of the bispectrum divided by an upper bound on its mean squared error, for a purely periodic, equatorial spot signal with a contribution of the convective blueshift inhibition twice that of the RV photometric effect, and $\bar{i} = 0.$ $\bar i = 0.$ .

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