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Table A.1.

Parameters and observables used in the calculation of the marginal likelihood function.

Model parameters Observables
Initial stellar mass m Apparent magnitude G
Stellar age τ Parallax ϖ
Metallicity ζ Effective temperature log Teff
Alpha enhancement α Gravity log g
Distance modulus μ Metallicity [Fe/H]
Extinction A Alpha enhancement [α/Fe]
Reddening EB − V
Colour indices, e.g. (B − V)

Notes.ζ = log10(Z/Z) is the theoretical metallicity parameter in contrast to the observed metallicity denoted [Fe/H]; similarly, α is the theoretical alpha enhancement parameter in contrast to the observed quantity [α/Fe]. The distance modulus is μ = (m − M)0, i.e. excluding extinction.

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