Line: Cr I - λ4616.1

Quality assessable? Yes  |  Robust against analysis method? No

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: -1.22 ± 0.03      log(gf)cog: -1.17 ± 0.04


Cross-matched literature data

Database λ (Å) log(gf) label low label up Elow (eV) Eup (eV) Jlow Jup
BRASSv1 4616.124 -1.190 LS 3d4.4s2 a5D LS 3d4.(5D).4s.4p.(3P*) y5P* 0.983 3.668 2.0 2.0
NIST 4616.124 -1.180 3d4.4s2a 5D 3d4.(5D).4s.4p.(3P*)y 5P* 0.983 3.668 2.0 2.0
VALD 4616.124 -1.190 LS 3d4.4s2 a5D LS 3d4.(5D).4s.4p.(3P*) y5P* 0.983 3.668 2.0 2.0
SpectroWeb 4616.120 -1.230 - - 0.983 3.668 - -

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

Warning: log(gf)grid and log(gf)cog are not within 0.04dex of each other. Systematic differences between the log(gf)grid and log(gf)cog values may be caused by additional lines in the synthesis,
which the curve of growth (cog) method does not account for. The quality of these additional lines has not been tested.

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 4616.119 ± 0.000 - -1.22 ± 0.03 - -
BRASSv2 COG - - -1.17 ± 0.04 -0.05 Yes
BRASSv1 4616.124 -0.005 -1.19 -0.03 Yes
NIST 4616.124 -0.005 -1.18 -0.04 No
VALD 4616.124 -0.005 -1.19 -0.03 Yes
SpectroWeb 4616.120 -0.001 -1.23 0.01 Yes

Equivalent widths

WλEpsEri (mÅ) Wλ70 Oph (mÅ) Wλ70 Vir (mÅ) WλSun (mÅ) Wλ51 Peg (mÅ) Wλ10 Tau (mÅ) WλBetCom (mÅ)
Measured 132.85 118.85 97.18 89.75 98.90 83.45 86.42
ΔWλcorr +13.05 +8.94 +2.62 +2.23 +2.54 +0.01 +0.71
Databases
BRASSv2 GRID 145.06 124.13 94.32 91.25 99.57 82.70 85.45
BRASSv2 COG 151.10 128.49 96.60 93.67 102.12 84.73 87.62
BRASSv1 148.14 126.36 95.50 92.50 100.88 83.75 86.57
NIST 149.31 127.21 95.94 92.97 101.38 84.14 86.98
VALD 148.14 126.36 95.50 92.50 100.88 83.75 86.57
SpectroWeb 143.60 123.09 93.75 90.66 98.95 82.19 84.91