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Table 5

Derived errors in the absolute flux values.

Errors (× 105 erg cm-2 s-1)

Line σrep σparam σreg σconv. σTotal σChrom

T1-T3 0.2 1.3 0.03 0.5 1.41 0.62
T1-T3 0.2 1.3 0.03 0 1.32 0.36
T2 0.1 1.3 0.03 0 1.3 0.32

Notes. The second and third columns respectively are related to repeatability errors and propagated errors generated by observational uncertainties (Teff, log g, and [Fe/H]). The forth column shows the average of fitting errors, the fifth column shows conversion errors between the subsamples. We note that the first line denotes the errors in OPD spectra converted to FEROS database, the second line shows the propagated errors in FEROS spectra, and the third line refers to the errors in T2, available only for the OPD spectra. The sixth column shows the errors on the total absolute line fluxes 1.31.4 × 105 erg cm-2 s-1. The seventh column shows the chromospheric flux errors after the photospheric subtraction (see Sect. 6) combined with repeatability and conversion errors.

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