Table 1.
Spectral measurements in AGN composite spectra.
| NL-AGN | BL-AGN | BOSS-QSO | ||||
|---|---|---|---|---|---|---|
| Line | EW | FWHM | EW | FWHM | EW | |
| (Å) | (km s−1) | (Å) | (km s−1) | (Å) | ||
| Lyα | λ1216 | 155 | < 1350 | 60: | ∼4000 | 85.7 |
| N V | λ1240 | 12.5 | ∼2500 | 15: | ∼4000 | 9.2 |
| N IV] | λ1485 | 1.9 | < 1350 | 2.3 | 0.15 | |
| C IV | λ1549 | 30.6 | < 1350 | 58.0 | ∼4200 | 37.4 |
| He II | λ1640 | 12.4 | < 1350 | 9.0 | ∼4000 | 1.5 |
| C III] | λ1909 | 14.5 | < 1350 | 30.0 | ∼4500 | 25.9 |
| C II] | λ2326 | 5.1 | 7.1 | ∼3600 | 0.5 | |
| [Ne IV] | λ2423 | 5.5 | < 1350 | 1.4 | 0.9 | |
Notes. All values are in the source rest-frame. The FWHM of a few low S/N lines is highly uncertain, so its value is missing in the table; FWHM upper limits refer to unresolved emission lines. Because the Lyα and N V lines are heavily blended in the broad-line AGN composite, their measured EWs are uncertain. In the last column, EWs from the BOSS Quasar composite (Harris et al. 2016) are listed.
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