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Table 6

System parameters provided by the entropy landscape technique, used in the Doppler image reconstruction, and a comparison with previously estimated values from the literature.

Limb-darkening coefficients

a1 =  +0.406 a2 =  +1.004 a3 =  −0.733 a4 =  +0.192
Parameter This work Maxted et al. (2007) Bruch (1999) Bruch & Diaz (1998)

i 79.0° 76°−90° 84.04° 87.9°
M1 0.45  M/*0.43 ± 0.02  M 0.440 ± 0.023  M 0.467  M 0.394  M
M2 0.15  M (0.182−0.183) ± 0.012  M 0.095  M 0.089  M
R2 0.21  R (0.203−0.215) ± 0.015  R 0.189  R 0.134  R
γ 80 km s-1/ 85.8 ± 3.6 km s-1 40 km s-1
log g1 7.8 ± 0.1 7.97
T1 7260 ± 250 K 7540 ± 175 K 7005 K 7005 K

Notes.

(†)

Entropy landscape.

(*)

Radial velocity fit provides gravitational redshift and WD spectra modeling provides log g.

(‡)

See Table 2.

(¶)

For the M dwarf. See their Table 2.

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