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Table 1:

Detection of WR features and the nebular He II emission line for the galaxies analyzed in this work.
    H$\beta $   He II $\lambda $4686   Blue WR bumpc   Red WR bumpd

Galaxy
Zone I -W $\eta$ I/I(H$\beta $) -W   I/I(H$\beta $) -W   I/I(H$\beta $) -W
    (a) [Å]   (b) [Å]   (b) [Å]   (b) [Å]

HCG 31
ACe 46.13 $\pm$ 0.18 91.1 $\pm$ 2.1 0.25 0.9 $\pm$ 0.3 0.66 $\pm$ 0.22   3.2 $\pm$ 1.9 2.5 $\pm$ 0.6   2.4 $\pm$ 0.6 3.1 $\pm$ 0.8
  F1 3.187 $\pm$ 0.016 218 $\pm$ 13 0.80 2.8 $\pm$ 0.3 4.3 $\pm$ 0.4   ... ...   ... ...
  F2 2.28 $\pm$ 0.19 256 $\pm$ 43 0.80 2.2 $\pm$ 0.5 3.9 $\pm$ 1.5   0.95 $\pm$ 0.35 3.4 $\pm$ 1.6   ... ...
Mkn 1087 Cf 78.1 ... 0.25 ... ...   10.6 ...   ... ...
Haro 15 C 23.3 $\pm$ 1.1 16.4 $\pm$ 1.1 0.40 0.49: 0.08:   2.82: 0.5:   ... ...
  A 23.4 $\pm$ 0.9 75.7 $\pm$ 4.2 0.50 1.7 $\pm$ 0.4 1.0 $\pm$ 0.2   1.4 $\pm$ 0.5 1.0 $\pm$ 0.3   ... ...
Mkn 1199 Ce 74.2 $\pm$ 3.1 21.4 $\pm$ 1.3 0.50 0.24: 0.05:   6.3 $\pm$ 1.8 1.3 $\pm$ 0.3   9.4 $\pm$ 2.3 2.8 $\pm$ 0.7
Mkn 5 A 17.7 $\pm$ 0.7 75 $\pm$ 5 0.40 0.9 $\pm$ 0.2 1.6 $\pm$ 0.3   1.5 $\pm$ 0.5 3.0 $\pm$ 1.2   ... ...
IRAS 08208+2816 C 12.9 $\pm$ 0.5 80 $\pm$ 5 0.25 ... ...   4.1 $\pm$ 1.3 3.3 $\pm$ 1.0   3.5 $\pm$ 1.3 3.6 $\pm$ 1.4
IRAS 08339+6517 #1 36.5 $\pm$ 1.3 25 $\pm$ 2 0.50 0.48: 0.1:   4.1: 2.2:   ... ...
POX 4 C 56.0 $\pm$ 1.8 200 $\pm$ 9 0.60 1.20 $\pm$ 0.16 1.9 $\pm$ 0.3   1.5 $\pm$ 0.3 3.0 $\pm$ 0.9   1.4 $\pm$ 0.2 3.9 $\pm$ 0.8
UM 420 ... 6.88 $\pm$ 0.27 169 $\pm$ 10 0.50 1.0 $\pm$ 0.2 2.0 $\pm$ 0.4   1.5 $\pm$ 0.5 2.8 $\pm$ 0.7   ... ...
SBS 0926+606 A 16.2 $\pm$ 0.6 125 $\pm$ 6 0.60 0.7 $\pm$ 0.2 1.9 $\pm$ 0.3   0.9: 3.2:   ... ...
SBS 0948+532 ... 8.44 $\pm$ 0.32 213 $\pm$ 11 0.60 1.3 $\pm$ 0.3 1.6 $\pm$ 0.6   1.1 $\pm$ 0.3 2.1 $\pm$ 0.7   ... ...
SBS 1054+365 C 14.6 $\pm$ 0.7 89 $\pm$ 7 0.40 0.6 $\pm$ 0.2 0.9 $\pm$ 0.3   1.6 $\pm$ 0.5 2.4 $\pm$ 0.8   ... ...
SBS 1211+540 ... 1.84 $\pm$ 0.09 135 $\pm$ 10 0.50 ... ...   <1.2: ...   NO OBS.g NO OBS.g
SBS 1319+579 A 14.6 $\pm$ 0.5 285 $\pm$ 14 0.90 0.8: 1.5:   0.7: 1.9:   ... ...
SBS 1415+437 C 18.5 $\pm$ 0.7 222 $\pm$ 11 0.60 2.4 $\pm$ 0.2 4.8 $\pm$ 0.3   <0.9: ...   ... ...
III Zw 107 A 22.3 $\pm$ 0.8 44.2 $\pm$ 2.3 0.50 ... ...   3.1 $\pm$ 1.1 1.3 $\pm$ 0.4   ... ...
Tol 9 C 23.4 $\pm$ 0.9 33.3 $\pm$ 2.0 0.50 0.33 $\pm$ 0.15 0.24 $\pm$ 0.7   7.9 $\pm$ 1.3 2.5 $\pm$ 0.4   5.8: 1.9:
Tol 1457-262 A 222 $\pm$ 8 101 $\pm$ 6 0.50 1.9 $\pm$ 0.4 1.5 $\pm$ 0.3   ... ...   ... ...
  B 47.7 $\pm$ 2.3 83 $\pm$ 7 0.40 2.9 $\pm$ 0.3 2.1 $\pm$ 0.2   ... ...   ... ...
ESO 566-7 ... 10.2 $\pm$ 0.8 13 $\pm$ 2 0.25 ... ...   ... ...   ... ...
ESO 566-8 ... 111 $\pm$ 5 95 $\pm$ 7 0.50 0.74 $\pm$ 0.25 0.65 $\pm$ 0.25   6.2 $\pm$ 2.2 4.1 $\pm$ 1.5   4.8 $\pm$ 1.2 4.2 $\pm$ 1.2
NGC 5253 A 134.5 $\pm$ 0.4 234 $\pm$ 5 1.00 0.10 $\pm$ 0.04 0.21 $\pm$ 0.09   0.71 $\pm$ 0.12 1.6 $\pm$ 0.3   NO OBS.g NO OBS.g
  B 135.2 $\pm$ 4.2 254 $\pm$ 5 1.10 0.05: 0.11:   0.71 $\pm$ 0.13 1.7 $\pm$ 0.3   NO OBS.g NO OBS.g
  Ce,g 101.3 $\pm$ 3.3 94.0 $\pm$ 1.0 0.40 0.06: 0.05:   4.13 $\pm$ 0.19 3.55 $\pm$ 0.17   1.00 $\pm$ 0.14h NO OBS.g
  D 25.6 $\pm$ 0.9 39.0 $\pm$ 0.5 0.30 0.40 $\pm$ 0.11 0.12 $\pm$ 0.04   ... ...   NO OBS.g NO OBS.g

Notes. (a) In units of 10-15 erg s-1 cm-2 and not corrected for extinction. (b) Assuming I(H$\beta $) = 100 and reddening-corrected. (c) Broad He II $\lambda $4686 emission line only. (d) Broad C IV $\lambda $5808 emission line only. (e) Broad N III $\lambda $4640 also detected. The reddened-corrected I/I(H$\beta $) ratios are 0.91, 5.6 and 1.44 for HCG 31 AC, Mkn 1199 and NGC 5253 C, respectively. See text for details. (f) Data from Vaceli et al. (1997), see López-Sánchez et al. (2004b). (g) NO OBS indicates that the spectral range where the feature lies was not observed. (h)  Broad C IV $\lambda $4658 detected. The I/I(H$\beta $) ratio given here is assuming $L_{\rm WCE}$($\lambda $5808) = $L_{\rm WCE}$($\lambda $4658)/1.71 (SV98). See text for details.


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