Gaia Data Release 3
Open Access

Table C.10.

Definition of individual abundance uncertainty flags (see Table 2). Xfe_gspspec_upper is the upper confidence value of the abundance (corresponding to the 84th quantile of the Monte-Carlo distribution). σ[X/Fe] is the 84th-16th interquantile abundance uncertainty. XfeUpperLimit is the mean value of the abundance upper limit for the considered lines of the X-element in the spectrum (depending on the mean S/N in the line wlp and the stellar parameters). Finally, the c-coefficients are reported in Table C.11.

Flag Condition Flag value
name
XUncer vbroadT≥2 or vbroadG≥2
or vbroadM≥2 or σ[X/Fe] = 0
or (Xfe_gspspec_upper - Xfe_gspspec) = 0
or Teff≤c1 or Teff≥c2 Flag 9
or logg≤c3 or logg≥c4 Filter [X/Fe]
or ( (2-XfeUpperLimit) / σ[X/Fe] )≤c5
or (S/N≤c6 and gof≥c7)
or (Xfe_gspspec + [M/H])≤c8

vbroadT< 2 and vbroadG< 2
and vbroadM< 2 and σ[X/Fe] != 0
and (Xfe_gspspec_upper - Xfe_gspspec) != 0 Flag 2
and c1< Teff< c2 and c3< logg< c4
and c5< ( (2 - XfeUpperLimit) / σ[X/Fe] ) < 7
and (S/N> c6 or gof< c7)
and (Xfe_gspspec + [M/H]) < c8

vbroadT< 2 and vbroadG< 2
and vbroadM< 2 and σ[X/Fe] != 0
and (Xfe_gspspec_upper - Xfe_gspspec) != 0
and c1< Teff< c2 and c3< logg< c4 Flag 1
and 7 ≤ ( (2 - XfeUpperLimit) / σ[X/Fe] ) < 10
and (S/N> c6 or gof< c7)
and (Xfe_gspspec + [M/H]) < c8

vbroadT< 2 and vbroadG< 2
and vbroadM< 2 and σ[X/Fe] != 0
and (Xfe_gspspec_upper - Xfe_gspspec) != 0
and c1< Teff< c2 and c3< logg< c4 Flag 0
and ( (2 - XfeUpperLimit) / σ[X/Fe] ) ≥ 10
and (S/N> c6 or gof< c7)
and (Xfe_gspspec + [M/H]) < c8

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