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Table 3

Parameters of CAL 83 after fitting by the models with various chemical compositions.

Parameter A = 0.1 A = 1 A = 1
NH, 1020 cm−2 5.46 ± 0.08 3.0 ± 0.1 5.1(a)
Teff, kK 508 ± 2 716 ± 6 586 ± 2
M/M 1.39 ± 0.01 1.35 ± 0.01 1.04 ± 0.01
R(b), 108 cm 8.01 ± 0.14 2.3 ± 0.07 5.17 ± 0.05
L(b), 1037 erg s−1 3.04 ± 0.1 1.0 ± 0.1 2.25 ± 0.1
log g 8.46 ± 0.02 9.53 ± 0.03 8.72 ± 0.02
Δ log g 0.82 ± 0.02 1.29 ± 0.03 0.83 ± 0.02
cstat (d.o.f.)(c) 6820.23 6172.02 6995.9
(3806) (3806) (3807)

Notes. (a)Hydrogen column density NH is fixed; (b)distance to the LMC is assumed to be 50 kpc (Pietrzyński et al. 2019); (c)C-statistics and the degrees of freedom for the best fit found with Bayesian analysis.

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