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Table 5

Multi-parametric fits.

logL(Hβ) = c0 + c1logMyoung + c2X
X c0 c1 c2 rms

33.34 ± 0.060 0.963 ± 0.008 6.245 ± 0.226 0.263
32.45 ± 0.069 1.091 ± 0.009 2.325 ± 0.075 0.255
log [OIII]/[OII]1 32.67 ± 0.060 1.108 ± 0.008 0.029 ± 0.010 0.213
log [OIII]/Hβ1 32.40 ± 0.007 1.146 ± 0.007 0.005 ± 0.035 0.223
12 + log(O/H)1 32.40 ± 0.062 1.147 ± 0.008 − 0.001 ± 0.003 0.222
         

Notes.(1) Using L(Hβ) corrected for evolution using the equivalent widths as in Fig. 11. To make the coefficients easier to read we scaled the equivalent widths by a factor of 103.

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