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Table 4.

Best-fit parameters for the luminosity-size relation (log L(Hα) = a × log Deq + b).

Sample N.objects a b ρ σ
All (a) 18 474 2.82 ± 0.01 31.79 ± 0.04 0.79 0.17
Diam. corr. < 50% 11 263 3.43 ± 0.02 30.36 ± 0.05 0.76 0.14
RReff 8268 3.32 ± 0.02 30.58 ± 0.06 0.74 0.14
R < Reff 2995 3.69 ± 0.02 29.88 ± 0.10 0.81 0.13
cluster A + LVC 6970 3.47 ± 0.02 30.38 ± 0.07 0.76 0.14
cluster B 3261 3.46 ± 0.02 30.23 ± 0.09 0.77 0.12
W′ cloud 239 3.50 ± 0.08 29.98 ± 0.37 0.70 0.11
W + M clouds 793 3.52 ± 0.05 29.74 ± 0.23 0.61 0.14

Notes. Fits are done for all H II regions with a diameter correction factor ≤50%, unless otherwise stated. No limits on the Hα luminosity is taken. ρ is the Spearman correlation coefficient, σ the dispersion perpendicular to the fitted relation.

(a)

No limits in the diameter correction.

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