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Table 3
Diagnostic H/He optical and NIR lines used in the current work (regarding Br12 see Sect. 3.2.2).
| Line | Wavelength [Å] | Number of H/He components and identification |
|---|---|---|
| Optical | ||
| Hα | 6562 | 2 - H I (2-3) & He II (4-6) |
| Hβ | 4861 | 2 - H I (2-4) & He II (4-8) |
| Hγ | 4340 | 2 - H I (2-5) & He II (4-10) |
| Hδ | 4101 | 2 - H I (2-6) & He II (4-12) |
| He I 4387 | 4387 | 1 - He I (2p1-5d1) |
| He I 4922 | 4922 | 1 - He I (2p1-4d1) |
| He I 4026 | 4026 | 2 - He I (2p3-5d3) & He II (4-13) |
| He I 4471 | 4471 | 1 - He I (2p3-4d3) |
| He I 6678 | 6678 | 2 - He I (2p1-3d1) & He II (5-13) |
| He II 4200 | 4200 | 1 - He II (4-11) |
| He II 4541 | 4541 | 1 - He II (4-9) |
| He II 4686 | 4686 | 1 - He II (3-4) |
| H-band | ||
| Br10 | 17362 | 1 - H I (4-10) |
| Br11 | 16807 | 1 - H I (4-11) |
| Br12 | 16407 | 1 - H I (4-12) |
| He I 1.70 | 17000 | 1 - He I (3p3-4d3) |
| He II 1.69 | 16900 | 1 - He II (7-12) |
| K-band | ||
| Brγ | 21660 | 4 - H I (4-7), He I (4d1-7f1), He I (4d3-7f3) & He II (8-14) |
| He II 2.18 | 21880 | 1 - He II (7-10) |
Notes. The He I line at 2.11 μm is severely contaminated by N III 2.1155 μm, and He I 2.05 μm is not present in the Hanson et al. (2005) spectra. These two lines are not included in our analysis. Wavelengths are given in air.
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