Table 5: Reddening-corrected fluxes for all H II regions in M 81 group galaxies.
Ion $\lambda$ [Å] DDO 42 DDO 53 UGC 4483 Ion $\lambda$ [Å] DDO 42 DDO 53 UGC 4483
He I 3613.6 0.004 $\pm $ 0.009 ... ... He I 4921.9 0.010 $\pm $ 0.003 ... ...
He I 3634.3 0.007 $\pm $ 0.009 ... ... [O III] 4958.9 2.239 $\pm $ 0.011 0.805 $\pm $ 0.029 0.848 $\pm $ 0.014
H19 3686.8 0.002 $\pm $ 0.009 ... ... [O III] 5006.8 5.328 $\pm $ 0.017 2.445 $\pm $ 0.045 2.551 $\pm $ 0.021
H18 3691.6 0.004 $\pm $ 0.009 ... ... ? 5118.0 0.023 $\pm $ 0.003 ... ...
H17 3697.2 0.005 $\pm $ 0.009 ... ... [O I] 5577.3 ... ... 0.041 $\pm $ 0.014
H16 3703.9 0.012 $\pm $ 0.009 ... 0.061 $\pm $ 0.027 $^{{\rm (a)}}$5635.0 0.005 $\pm $ 0.004 ... ...
H15 3712.0 0.010 $\pm $ 0.009 ... ... He I 5875.7 0.107 $\pm $ 0.007 ... 0.061 $\pm $ 0.019
S III+H14 3722.0 0.025 $\pm $ 0.009 ... ... [O I] 6300.3 0.012 $\pm $ 0.007 ... ...
[O II] 3726.0 0.581 $\pm $ 0.009 2.275 $\pm $ 0.076 0.871 $\pm $ 0.028 [S III] 6312.1 0.017 $\pm $ 0.007 ... ...
H13 3734.4 0.021 $\pm $ 0.009 ... ... [O I] 6363.8 0.005 $\pm $ 0.007 ... ...
H12 3750.2 0.031 $\pm $ 0.009 ... 0.064 $\pm $ 0.026 ? 6386.0 0.006 $\pm $ 0.007 ... ...
H11 3770.6 0.042 $\pm $ 0.009 ... 0.072 $\pm $ 0.026 ? 6441.0 0.003 $\pm $ 0.007 ... ...
H10 3797.9 0.055 $\pm $ 0.008 0.104 $\pm $ 0.067 0.076 $\pm $ 0.025 [N II] 6548.0 0.013 $\pm $ 0.008 ... 0.015 $\pm $ 0.024
He I 3819.6 0.011 $\pm $ 0.008 ... ... H$\alpha $ 6562.8 2.849 $\pm $ 0.008 2.849 $\pm $ 0.101 2.851 $\pm $ 0.037
H9 3835.4 0.075 $\pm $ 0.008 0.111 $\pm $ 0.065 0.099 $\pm $ 0.025 [N II] 6583.4 0.027 $\pm $ 0.008 0.051 $\pm $ 0.050 0.034 $\pm $ 0.025
[Ne III] 3868.8 0.632 $\pm $ 0.008 0.294 $\pm $ 0.064 0.183 $\pm $ 0.024 He I 6678.1 0.030 $\pm $ 0.008 0.070 $\pm $ 0.052 0.018 $\pm $ 0.026
H8 3889.1 0.225 $\pm $ 0.008 0.282 $\pm $ 0.062 0.196 $\pm $ 0.024 [S II] 6716.5 0.055 $\pm $ 0.008 0.148 $\pm $ 0.056 0.080 $\pm $ 0.026
H$\epsilon$ 3970.1 0.353 $\pm $ 0.008 0.343 $\pm $ 0.058 0.207 $\pm $ 0.022 [S II] 6730.8 0.045 $\pm $ 0.008 0.104 $\pm $ 0.056 0.059 $\pm $ 0.026
He I4026.2 0.018 $\pm $ 0.007 ... ... He I 7065.3 0.031 $\pm $ 0.010 ... 0.029 $\pm $ 0.030
[S II] 4068.6 0.006 $\pm $ 0.007 ... 0.013 $\pm $ 0.020 [Ar III] 7135.8 0.059 $\pm $ 0.010 0.035 $\pm $ 0.058 0.026 $\pm $ 0.031
[S II] 4076.4 0.001 $\pm $ 0.007 ... ... He I 7281.3 0.004 $\pm $ 0.010 ... ...
H$\delta$ 4101.7 0.297 $\pm $ 0.007 0.302 $\pm $ 0.050 0.233 $\pm $ 0.019 O II] 7319.6 0.009 $\pm $ 0.010 ... ...
He I 4120.9 0.002 $\pm $ 0.006 ... ... O II] 7330.2 0.013 $\pm $ 0.010 ... ...
He I 4143.8 0.001 $\pm $ 0.006 ... ... [Ar III] 7751.1 0.015 $\pm $ 0.012 ... ...
H$\gamma$ 4340.5 0.536 $\pm $ 0.008 0.470 $\pm $ 0.035 0.419 $\pm $ 0.015 ? 8058.0 0.012 $\pm $ 0.013 ... ...
[O III] 4363.2 0.165 $\pm $ 0.008 ... 0.049 $\pm $ 0.013 ? 8083.0 0.011 $\pm $ 0.013 ... ...
He I 4471.5 0.048 $\pm $ 0.005 ... ... Pa16 8502.5 0.003 $\pm $ 0.014 ... ...
? 4693.0 0.004 $\pm $ 0.001 ... ... Pa15 8545.4 0.006 $\pm $ 0.014 ... ...
He I 4713.2 0.034 $\pm $ 0.003 ... ... Pa14 8598.4 0.005 $\pm $ 0.014 ... ...
C II4744.9 0.026 $\pm $ 0.003 ... ... Pa13 8665.0 0.016 $\pm $ 0.015 ... ...
H$\beta$ 4861.3 1.000 $\pm $ 0.008 1.000 $\pm $ 0.028 1.000 $\pm $ 0.014 C H/$\alpha $H$\beta$b 0.020 $\pm $ 0.010 0.216 $\pm $ 0.068 0.001 $\pm $ 0.030
Notes: a S II $\lambda5640$? b The reddening constant is computed by the expression: $I_{{\rm H}\alpha}/I_{{\rm H}\beta}=I_{{\rm H}\alpha0}/I_{{\rm H}\beta0}10^{-C[f({\rm H}\alpha)-f({\rm H}\beta)]}$, where I0 and I denote the flux before and after extinction, and $f(\lambda)$ is the extinction curve.


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