Table 1
Line list and oscillator strengths.
| Ion | λ | χex | log gf | log gf | log gf |
|---|---|---|---|---|---|
| (Å) | (eV) | VALD3 | Kurucz | APOGEE | |
| PI | 15711.522 | 7.176 | −0.510 | −0.720 | −0.404 |
| 16482.932 | 7.213 | −0.290 | −0.400 | −0.273 | |
| SI | 15469.816 | 8.046 | −0.050 | −0.220 | −0.199 |
| 15475.616 | 8.047 | −0.520 | −0.700 | −0.744 | |
| 15478.482 | 8.047 | 0.180 | 0.000 | −0.040 | |
| KI | 15163.067 | 2.670 | 0.524 | 0.640 | 0.630 |
| 15168.377 | 2.670 | 0.347 | 0.480 | 0.481 |
Notes. Air wavelengths are from APOGEE collaboration linelist. Note that somewhat different wavelengths for S I 15469.826. 15475.624 and 15478.496 Å are given in National Institute of Standards and Technology (NIST) by Kramida, A., Ralchenko, Yu., Reader, J., and the NIST ASD Team (2024). The NIST Atomic Spectra Database used is (ver. 5.12), [Online]1 [2025, April 16]. Oscillator strengths of the P, S, and K lines from VALD3, Kurucz & Bell (1995), and the APOGEE collaboration (adopted) are reported.
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