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Fig. 5

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Comparison of Teff values obtained from our spectroscopic analysis (Sect. 4.1.1) and from the IRFM (Sect. 4.1.2), plotted against the different atmospheric parameters and the external parameters RUWE and E(B – V) (that could impact especially the IRFM). The differences are coloured by the RUWE value from Gaia EDR3 (Lindegren et al. 2018), with the colour capped at a RUWE value of 1.4 (marked in the bottom left panel as a vertical dashed line), which is suggested as the upper limit for a single source with a non-problematic astrometric solution For EPIC 231478973 no RUWE value is available, and this star has been indicated by a magenta marker. The horizontal dashed line marks the zero-difference, while the horizontal dotted lines mark the median Teff uncertainty of the differences. The violin insert in the upper right panel shows the distribution of the differences, with the darker red interval indicating the standardized MAD interval. The triangular markers with green errorbars mark the three stars with likely unreliable SPC results.

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