Table 2

Stellar parameters of the sample assumed in our 3D models and compared to literature values.

G64-12 HD 140283 HD 84937 HD 19445

Teff Hαa ... 5753 ... 5980
Teff Hβb 6435 5849 6357 ...
Teff IRFMc 6464 5777 6408 6135
Teff model 6428 5780 6238 6061

log   (g) ast.ab (4.26) 3.72 4.07 4.42
log   (g) spec.d 4.34 3.63 4.28 ...
log   (g) model 4.20 3.70 4.00 4.50

[Fe / H] spec.ab −3.24 −2.38 −2.11 −2.02
[Fe / H] spec.d −3.16 −2.41 −2.04 ...
[Fe / H] model −3.00 −2.50 −2.00 −2.00

Reference.

(b)

Nissen et al. (2007). Note that log   (g) of G64-12 was not derived from parallax measurements, but from Strömgren photometry.

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