Figure 1 from A GRANULATION “FLICKER”-BASED MEASURE OF STELLAR SURFACE GRAVITY

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A GRANULATION “FLICKER”-BASED MEASURE OF STELLAR SURFACE GRAVITY

Authors: Fabienne A. Bastien, Keivan G. Stassun, Gibor Basri, and Joshua Pepper

2016 The Astrophysical Journal 818 43.

Provider: AAS Journals

Caption: Figure 1.

Removal of the contribution of shot noise to F₈. Plotting F₈ as a function of Kepler magnitude shows the increasing importance of shot noise to the measured flicker signal. We correct our F₈ measurements by fitting the lower envelope of the shown distribution (red curve) and subtracting this fit from the measurement. See Section 2.2.3.

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