Table 3
Fluxes derived from our fitting of the WR bumps, and derived WR numbers for the class-1 WR regions identified in this study.
| Galaxy | Region | Hβ (WR) | c(Hβ) | N vλ4612 | N/C λ4650 | Narrow He iiλ4686 | Blue bump | Red bump | 12 + log(O/H) | N WNE | N WNL | N WCE | N WCE |
| ID | (× 10-14 cgs) | I/I(Hβ) (WR) | (O3N2) | (5808) | (4650) | ||||||||
| (1) | (2) | (3) | (4) | (5–9) | (10) | (11) | (12) | (13) | (14) | ||||
|
|
|||||||||||||
| IC 0225 | R1 | 1.62 ± 0.03 | 0.09 ± 0.01 | − | 9.3 ± 4.7 | − | 9.9 ± 4.6 | − | 8.40 ± 0.04 | − | 61 ± 29 | − | 15 ± 9 |
| IC 0776 | R1 | 0.67 ± 0.00 | 0.00 ± 0.01 | − | 4.1 ± 3.1 | 0.44 ± 0.20 | 3.9 ± 0.8 | − | 8.21 ± 0.02 | − | 28 ± 6 | − | 7 ± 5 |
| NGC 0216 | R1 | 3.94 ± 0.09 | 0.12 ± 0.01 | − | 10.7 ± 2.4 | 0.60 : | 11.7 ± 1.3 | − | 8.33 ± 0.06 | − | 181 ± 18 | − | 40 ± 11 |
| NGC 2604 | R1 | 4.92 ± 0.08 | 0.25 ± 0.01 | − | 7.1 ± 1.1 | 0.67 ± 0.32 | 11.0 ± 1.3 | − | 8.46 ± 0.04 | − | 393 ± 43 | − | 53 ± 13 |
| NGC 3353 | R1 | 81.51 ± 0.54 | 0.19 ± 0.01 | 0.45 ± 0.09 | 2.3 ± 0.3 | 0.31 ± 0.06 | 4.5 ± 0.3 | 0.71 ± 0.10 | 8.22 ± 0.02 | 481 ± 92 | 268 ± 122 | 62 ± 8 | 68 ± 12 |
| NGC 3381 | R1 | 6.61 ± 0.12 | 0.15 ± 0.01 | − | 9.8 ± 0.6 | 1.54 ± 0.17 | 10.5 ± 0.7 | − | 8.58 ± 0.07 | − | 269 ± 16 | − | 75 ± 4 |
| NGC 3773 | R1 | 22.07 ± 0.31 | 0.07 ± 0.01 | − | 9.7 ± 1.7 | 0.71 ± 0.15 | 8.2 ± 0.9 | 6.82 ± 1.07 | 8.35 ± 0.04 | − | 216 ± 62 | 151 ± 22 | 83 ± 17 |
| NGC 3991 | R1 | 4.73 ± 0.07 | 0.02 ± 0.01 | − | 5.7 ± 0.5 | 1.32 ± 0.19 | 3.3 ± 0.7 | 4.36 ± 1.00 | 8.27 ± 0.04 | − | 187 ± 80 | 261 ± 56 | 137 ± 14 |
| R2 | 15.10 ± 0.16 | 0.07 ± 0.01 | − | 4.5 ± 0.3 | 0.70 ± 0.14 | 2.4 ± 0.3 | 4.13 ± 0.80 | 8.24 ± 0.03 | − | 348 ± 128 | 808 ± 149 | 353 ± 24 | |
| NGC 3994 | R1 | 8.20 ± 0.18 | 0.50 ± 0.01 | − | 10.7 ± 1.3 | − | 5.9 ± 0.8 | − | 8.53 ± 0.05 | − | 592 ± 89 | − | 428 ± 47 |
| NGC 4470 | R1 | 0.44 ± 0.03 | 0.09 ± 0.03 | − | 32.5 ± 4.5 | − | 23.8 ± 3.7 | − | 8.50 ± 0.17 | − | 81 ± 9 | − | 37 ± 3 |
| R2 | 0.86 ± 0.03 | 0.19 ± 0.02 | − | 17.8 ± 2.7 | − | 14.2 ± 3.6 | − | 8.46 ± 0.09 | − | 97 ± 26 | − | 39 ± 6 | |
| NGC 4630 | R1 | 11.01 ± 0.14 | 0.28 ± 0.01 | − | 5.0 ± 0.6 | 0.65 ± 0.16 | 6.5 ± 0.8 | − | 8.60 ± 0.06 | − | 49 ± 5 | − | 10 ± 1 |
| NGC 5630 | R1 | 1.74 ± 0.05 | 0.28 ± 0.02 | − | 8.8 ± 1.5 | − | 9.5 ± 1.7 | − | 8.37 ± 0.06 | − | 194 ± 34 | − | 44 ± 9 |
| NGC 5665 | R2 | 7.44 ± 0.13 | 0.30 ± 0.01 | − | 5.7 ± 0.6 | − | 4.9 ± 0.5 | − | 8.56 ± 0.05 | − | 260 ± 25 | − | 97 ± 11 |
| R3 | 1.97 ± 0.02 | 0.23 ± 0.01 | − | 8.6 ± 0.9 | 1.13 ± 0.21 | 7.2 ± 0.9 | − | 8.53 ± 0.03 | − | 100 ± 13 | − | 39 ± 4 | |
| R6 | 12.98 ± 0.14 | 0.36 ± 0.01 | − | 5.8 ± 0.5 | 0.40 ± 0.15 | 2.9 ± 0.4 | − | 8.56 ± 0.03 | − | 226 ± 42 | − | 192 ± 18 | |
| NGC 5954 | R2 | 5.28 ± 0.08 | 0.42 ± 0.01 | − | 8.6 ± 1.0 | 0.57 ± 0.27 | 5.1 ± 1.0 | − | 8.55 ± 0.04 | − | 129 ± 31 | − | 83 ± 10 |
| R3 | 7.67 ± 0.06 | 0.37 ± 0.01 | − | 5.5 ± 0.6 | − | 3.8 ± 0.4 | − | 8.55 ± 0.02 | − | 147 ± 19 | − | 76 ± 9 | |
| NGC 6090 | R1 | 51.64 ± 0.76 | 0.55 ± 0.01 | − | 3.1 ± 0.3 | 0.72 ± 0.14 | 4.9 ± 0.5 | − | 8.55 ± 0.03 | − | 31023 ± 2851 | − | 4538 ± 623 |
| NGC 7469 | R1 | 98.29 ± 3.48 | 0.35 ± 0.02 | − | 12.2 ± 1.7 | − | 7.5 ± 2.1 | − | 8.48 ± 0.07 | − | 21772 ± 7053 | − | 12893 ± 1660 |
| UGC 00312 | R1 | 1.33 ± 0.01 | 0.11 ± 0.01 | − | 5.8 ± 2.1 | 0.75 ± 0.22 | 2.2 ± 0.9 | − | 8.23 ± 0.02 | − | 72 ± 41 | − | 75 ± 29 |
| R2 | 1.55 ± 0.03 | 0.17 ± 0.01 | − | 8.1 ± 1.2 | − | 3.4 ± 0.4 | − | 8.39 ± 0.04 | − | 122 ± 18 | − | 120 ± 16 | |
| UGC 10297 | R1 | 1.21 ± 0.01 | 0.32 ± 0.01 | − | 8.0 ± 1.2 | 1.57 ± 0.45 | 10.6 ± 1.7 | − | 8.22 ± 0.03 | − | 130 ± 21 | − | 18 ± 4 |
| UGC 10331 | R1 | 4.08 ± 0.05 | 0.45 ± 0.01 | − | 6.2 ± 0.7 | 0.56 ± 0.26 | 3.8 ± 0.7 | − | 8.47 ± 0.03 | − | 438 ± 98 | − | 256 ± 30 |
| R2 | 2.92 ± 0.04 | 0.32 ± 0.01 | − | 7.7 ± 0.7 | 0.63 ± 0.23 | 5.3 ± 0.8 | − | 8.36 ± 0.03 | − | 476 ± 77 | − | 220 ± 21 | |
| UGC 10650 | R1 | 3.29 ± 0.04 | 0.15 ± 0.01 | − | 5.9 ± 1.0 | − | 6.5 ± 0.7 | − | 8.35 ± 0.03 | − | 319 ± 34 | − | 70 ± 16 |
| UGC 6320 | R1 | 13.90 ± 0.12 | 0.13 ± 0.01 | 0.66 ± 0.15 | 4.4 ± 0.4 | 0.29 ± 0.11 | 6.6 ± 0.4 | 1.05 ± 0.15 | 8.29 ± 0.02 | 162 ± 35 | 86 ± 42 | 20 ± 3 | 33 ± 4 |
| R2 | 2.82 ± 0.03 | 0.13 ± 0.01 | − | 3.2 ± 0.8 | 0.55 ± 0.19 | 6.8 ± 0.8 | − | 8.29 ± 0.02 | − | 41 ± 4 | − | 2 ± 1 | |
| UGC 9663 | R1 | 0.98 ± 0.01 | 0.10 ± 0.01 | − | 4.9 ± 1.2 | 0.95 ± 0.30 | 7.9 ± 1.4 | − | 8.14 ± 0.02 | − | 90 ± 17 | − | 7 ± 3 |
Notes. Column (1): name of the galaxy. Column (2): region identification number. Column (3): the extinction corrected Hβ line intensity of the region showing WR features. Column (4): extinction coefficient. Columns (5–9): line intensity ratios of the broad band components of the blue bump plus the nebular He iiλ4686 emission line and the broad component of the red bump with respect to Hβ , normalized to Hβ = 100. We used the law by Cardelli et al. (1989), assuming RV = 3.1 and case B recombination (Osterbrock 1989) to correct the emission-line fluxes for internal extinction. Column (10): gaseous oxygen abundance of the region showing WR features, obtained using the O3N2-parameter (see text). Column (11): derived number of early-type WN stars. Column (12): derived number of late-type WN stars. Column (13): derived number of early-type WC stars using the flux measurement of the red bump. Column(14): estimated number of early-type WC stars using the flux measurement of the broad λ4650 feature.
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