Open Access
Table 1.
Numbers of QSOs of ten different unusual types (see Sect. 4) among the low-z QSOs with rz ≥ 2.
| Type | Number |
|---|---|
| All | 948 |
| Noticeable red continuum (without BAL QSOs) | 247 |
| FeLoBALs | 140 |
| LoBALs | 104 |
| HiBALs | 85 |
| Strong associated absorption lines | 184 |
| 3000 Å break | 12 |
| Type 2 | 28 |
| WLQs | 29 |
| Double-peaked or asymmetric broad Balmer lines | 34 |
| Strong Fe emission | 25 |
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