A comprehensive Gaia view of ellipsoidal and rotational red giant binaries

Open Access

Fig. 3.

Surface gravity and the activity index $log R'_{IRT}$ $\log{R\prime_{\mathrm{IRT}}}$ for stars with available activityindex_espcs measurements in Gaia DR3. The stars are color coded according to log χ², the goodness-of-fit of the RVS spectra from the GaiaGSP-Spec module.

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