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Table 2.
Spectral features, central wavelengths, wavelength ranges, and continuum ranges used for the calculation of the EWs.
| Spectral feature | Center (Å) | Wavelength span (Å) | Continuum left (Å) | Continuum right (Å) |
|---|---|---|---|---|
| Hβ | 4864 | 30 | 4839–4849 | 4879–4889 |
| [O III] λ5007 | 5007 | 30 | 4982–4992 | 5022–5032 |
| Hα + [N II] λλ6548,84 | 6566 | 80 | 6516–6526 | 6606–6616 |
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