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Table 6.
Emission line and continuum intensities in rest frame and corrected for Galactic extinction for the years 1991 up to 2024.
| Emission line | Flux 91 | Flux 13 | Flux 19 | Flux 22 | Flux 24 | Wavelength range |
|---|---|---|---|---|---|---|
| and continuum | [Å] | |||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| cont. 1288 | 7.60 ± .3 | 8.03 ± .3 | 6.24 ± .3 | 1287–1290 | ||
| cont. 1818 | 4.07 ± .2 | 3.28 ± .2 | 1808–1828 | |||
| cont. 3552 | 1.89 ± .2 | 1.06 ± .2 | 1.28 ± .2 | 1.55 ± .2 | 3542–3562 | |
| cont. 4734 | 1.19 ± .2 | 0.74 ± .2 | 0.90 ± .2 | 1.05 ± .2 | 4724–4744 | |
| O VI λ 1038 | 39.8 ± 5. | ≤5. | 1024–1054 | |||
| C III λ 1176 | 9.35 ± 5. | ≤5. | 1164–1181 | |||
| Lyα | 210. ± 20. | 228. ± 20. | 167. ± 15. | 1182–1234 | ||
| N V λ 1243 | 60. ± 30. | 67.5 ± 20. | 57.7 ± 30. | 1234–1253 | ||
| Si II λ 1308 + O I λ 1302 | 29.8 ± 5. | 66.6 ± 10. | ≤3. | 1288–1327 | ||
| Si IV λ 1403 | 15.0 ± 3. | 16.6 ± 10. | 20.7 ± 6. | 1387–1419 | ||
| He II λ 1640 | 4.9 ± 2. | < 3. | 1631–1651 | |||
| C III] λ 1909 | 18.1 ± 8. | 15.1 ± 10. | 1880–1931 | |||
| Mg II λ 2800 | 7.63 ± .7 | 17.5 ± 1.5 | 16.8 ± 1.5 | 2767–2831 | ||
| [O II]] λ 3727 | 0.33 ± .04 | 3720–3732 | ||||
| Hγ | 33.3 ± 3. | 23.7 ± 3. | 31.5 ± 3. | 32.5 ± 3. | 4272–4396 | |
| Fe II λλ 4500 | 44.8 ± 4. | 41.6 ± 4. | 52.5 ± 4. | 51.6 ± 4. | 4453–4669 | |
| Hβ | 49.2 ± 5. | 41.0 ± 5. | 63.9 ± 5. | 66.1 ± 5. | 4764–4948 | |
Notes. Continuum flux in units of 10−15 erg s−1 cm−2 Å−1. Line flux in units 10−15 erg s−1 cm−2.
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