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Table 2
Spectral lines wavelengths.
| Vacuum wavelength | Element | Reference |
|---|---|---|
| [μm] | ||
| Early-type stars | ||
| 1.556072 | H I (4–16) | (1) |
| 1.570497 | H I (4–15) | (1) |
| 1.588490 | H I (4–14) | (1) |
| 1.611373 | H I (4–13) | (1) |
| 1.641169 | H I (4–12) | (1) |
| 1.681113 | H I (4–11) | (1) |
| 1.69230 | He II (7–12) | (2) |
| 1.700711 | He I 4d3D − 3p3P0 | (1) |
| 1.736687 | H I (4–10) | (1) |
| 2.058690 | He I 2p1P0 − 2s1S | (1) |
| 2.112583 | He I 4s3S − 3p3P0 | (1) |
| 2.166121 | H I (4–7) | (1) |
| 2.189110 | He II (7–10) | (2) |
| Late-type stars | ||
| 1.61890 | CO(ν = 3–6) | (2) |
| 1.71133 | Mg I  |
(1) |
| 2.20624 | Na I  |
(2) |
| 2.20897 | Na I  |
(2) |
| 2.26311 | Ca I  |
(2) |
| 2.26573 | Ca I  |
(2) |
| 2.29353 | CO(ν = 0–2) | (2) |
| 2.32265 | CO(ν = 1–3) | (2) |
References. (1) Kramida et al. (2015), (2) Cox (2000).
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