Table 2.
Atomic parameters of the three strongest blends in the Mg I b2 5173 Å line.
| Atom | λ0 (Å) | log (gf) | L1 | U1 | geff |
|---|---|---|---|---|---|
| Fe I | 5171.59 | −1.793 | 3F4 | 3F4 | 1.25 |
| Fe I | 5171.67 | −1.912 | 3D3 |
 |
0.50 |
| Ti I | 5173.74 | −1.118 | 3F2 | 3F2 | 0.67 |
Notes. From left to right, the columns indicate the corresponding atomic species, the central wavelength, the log(gf) of the transition, and the spectroscopic notation of the lower and the upper levels. Data taken from the database of the National Institute of Standards and Technology (NIST) (2024) and verified for consistency in Kurucz & Bell (1995). The last column contains the effective Landé factor computed assuming L–S coupling by Quintero Noda et al. (2018).
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