Table 4.
Classification based on BPT diagrams (see Fig. 7).
| Criteria | Counts | fraction |
|---|---|---|
| DPS | ||
| double SF | 1617 | (28.6 %) |
| double COMP | 939 | (16.6 %) |
| double AGN | 385 | (6.8 %) |
| double LINER | 29 | (0.5 %) |
| SF + COMP | 784 | (13.8 %) |
| SF + AGN | 17 | (0.3 %) |
| SF + LINER | 9 | (0.2 %) |
| COMP + AGN | 167 | (2.9 %) |
| COMP + LINER | 64 | (1.1 %) |
| AGN + LINER | 59 | (1.0 %) |
| SF + uncertain | 570 | (10.1 %) |
| COMP + uncertain | 592 | (10.5 %) |
| AGN + uncertain | 110 | (1.9 %) |
| LINER + uncertain | 63 | (1.1 %) |
| Not classifiable | 258 | (4.6 %) |
| DPS with non-parametric fit | ||
| SF | 2534 | (44.7 %) |
| COMP | 2153 | (38.0 %) |
| AGN | 630 | (11.1 %) |
| LINER | 174 | (3.1 %) |
| Not classifiable | 172 | (3.0 %) |
| No-Bias Control sample | ||
| SF | 2811 | (54.8 %) |
| COMP | 1226 | (23.9 %) |
| AGN | 687 | (13.4 %) |
| LINER | 308 | (6.0 %) |
| Not classifiable | 96 | (1.9 %) |
| Control sample | ||
| SF | 82 065 | (91.8 %) |
| COMP | 4721 | (5.3 %) |
| AGN | 1623 | (1.8 %) |
| LINER | 536 | (0.6 %) |
| Not classifiable | 467 | (0.5 %) |
Notes. Following Kewley et al. (2006b) and Schawinski et al. (2007), we classify each two emission line component of the DPS individually, as explained in Sect. 3.1. We show all combinations of classification such as double (e.g. SF + SF) and mixed (e.g. SF + COMP) classifications. We also display those galaxies which are not classifiable in only one component (e.g. SF + uncertain) or in both. The classifications for the CS and the NBCS are also displayed for comparison.
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