Line: Fe I - λ6593.9

Quality assessable? Yes  |  Robust against analysis method? Yes

Line considered quality assessable if log(gf)grid and log(gf)cog within error of each other. Line considered robust against analysis method if log(gf)grid and log(gf)cog within 0.04dex of each other.

log(gf)grid: -2.33 ± 0.03      log(gf)cog: -2.30 ± 0.03


Cross-matched literature data

Database λ (Å) log(gf) label low label up Elow (eV) Eup (eV) Jlow Jup
BRASSv1 6593.869 -2.420 LS 3p6.3d6.4s2 a3H LS 3p6.3d7.(4F).4p z5G* 2.433 4.313 5.0 5.0
NIST 6593.870 -2.422 3d6.4s2a 3H 3d7.(4F).4pz 5G* 2.433 4.312 5.0 5.0
VALD 6593.869 -2.422 LS 3d6.4s2 a3H LS 3d7.(4F).4p z5G* 2.433 4.312 5.0 5.0
SpectroWeb 6593.870 -2.422 - - 2.433 4.312 - -

Line profile plots per G-type benchmark star

Information Radio buttons can be used to choose which database log(gf) values and line profiles to view. Interactive plot controls can be found to the top right of plotting panels.

Top left panel: Points represent the individual stellar log(gf) values plotted as a function of effective temperature. Lines represent the mean log(gf) values and the literature log(gf) values.
Shaded areas represent the uncertainty associated with a given log(gf) value.

Remaining panels: Observed line profiles are shown by black dotted lines for each of the 7 FGK-type benchmark stars. Synthetic line profiles, calculated using the mean log(gf) values and the
literature log(gf) values, are shown by the solid coloured lines. Shaded areas represent the uncertainty in line profile flux due to the uncertainty in the corresponding log(gf) values.


Quality assessment

Database λ (Å) Δλ(w.r.t GRID) (Å) log(gf) Δlog(gf)(w.r.t GRID) Within error of log(gf)grid?
BRASSv2 GRID 6593.874 ± 0.002 - -2.33 ± 0.03 - -
BRASSv2 COG - - -2.30 ± 0.03 -0.03 Yes
BRASSv1 6593.869 0.005 -2.42 0.09 No
NIST 6593.870 0.004 -2.42 0.09 No
VALD 6593.869 0.005 -2.42 0.09 No
SpectroWeb 6593.870 0.004 -2.42 0.09 No

Equivalent widths

WλEpsEri (mÅ) Wλ70 Oph (mÅ) Wλ70 Vir (mÅ) WλSun (mÅ) Wλ51 Peg (mÅ) Wλ10 Tau (mÅ) WλBetCom (mÅ)
Measured 115.20 110.86 93.41 85.22 96.20 76.31 79.92
ΔWλcorr +9.21 +7.68 +2.44 +2.41 +2.88 +0.10 +0.66
Databases
BRASSv2 GRID 152.87 148.10 126.27 130.93 166.07 141.08 163.60
BRASSv2 COG 155.58 150.33 127.69 132.44 167.66 142.41 164.98
BRASSv1 144.52 141.16 121.66 126.00 160.98 136.71 159.15
NIST 144.34 141.01 121.56 125.90 160.86 136.61 159.05
VALD 144.34 141.01 121.56 125.90 160.86 136.61 159.05
SpectroWeb 144.34 141.01 121.56 125.90 160.86 136.61 159.05