**Table 3:** Means and RMSs of emission-line flux ratios of the galaxies in the sample A+B^a.
Oxygen abundance	log R₂₃	log $\frac{F([{\rm NII}]\lambda6584) }{F({\rm H}\alpha)}$	log $\frac{F([{\rm OIII}]\lambda5007)}{F([{\rm NII}]\lambda6584)}$	log $\frac{F([{\rm NII}]\lambda6584) }{F([{\rm OII}]\lambda3727)}$	log $\frac{F([{\rm NII}]\lambda6584) }{F([{\rm SII}]\lambda6720)}$	log $\frac{F([{\rm OIII}]\lambda5007)}{F([{\rm OII}]\lambda3727)}$
$7.05 \leq 12 + {\rm log (O/H)} < 7.45$	0.601	-2.452	2.415	-1.657	-0.668	0.920
	(0.108)	(0.238)	(0.196)	(0.269)	(0.178)	(0.247)
$7.45 \leq 12 + {\rm log (O/H)} < 7.55$	0.780	-2.122	2.278	-1.477	-0.606	0.814
	(0.084)	(0.272)	(0.343)	(0.120)	(0.111)	(0.262)
$7.55 \leq 12 + {\rm log (O/H)} < 7.65$	0.809	-1.844	2.006	-1.376	-0.566	0.652
	(0.068)	(0.195)	(0.274)	(0.183)	(0.197)	(0.356)
$7.65 \leq 12 + {\rm log (O/H)} < 7.75$	0.843	-1.846	2.050	-1.431	-0.599	0.492
	(0.039)	(0.247)	(0.290)	(0.176)	(0.075)	(0.233)
$7.75 \leq 12 + {\rm log (O/H)} < 7.85$	0.909	-1.887	2.162	-1.458	-0.621	0.719
	(0.039)	(0.205)	(0.260)	(0.129)	(0.112)	(0.233)
$7.85 \leq 12 + {\rm log (O/H)} < 7.95$	0.928	-1.624	1.884	-1.281	-0.531	0.579
	(0.045)	(0.197)	(0.262)	(0.167)	(0.140)	(0.307)
$7.95 \leq 12 + {\rm log (O/H)} < 8.05$	0.941	-1.578	1.858	-1.262	-0.484	0.571
	(0.042)	(0.213)	(0.280)	(0.179)	(0.118)	(0.218)
$8.05 \leq 12 + {\rm log (O/H)} < 8.15$	0.944	-1.481	1.759	-1.227	-0.450	0.511
	(0.053)	(0.177)	(0.255)	(0.149)	(0.109)	(0.247)
$8.15 \leq 12 + {\rm log (O/H)} < 8.25$	0.938	-1.375	1.631	-1.119	-0.348	0.514
	(0.044)	(0.142)	(0.185)	(0.114)	(0.120)	(0.168)
$8.25 \leq 12 + {\rm log (O/H)} < 8.35$	0.917	-1.415	1.641	-1.201	-0.333	0.436
	(0.036)	(0.196)	(0.260)	(0.101)	(0.064)	(0.288)
$8.35 \leq 12 + {\rm log (O/H)} < 8.55$	0.892	-1.124	1.259	-1.084	-0.173	0.258
	(0.034)	(0.176)	(0.221)	(0.109)	(0.122)	(0.087)

^a Mean and RMS of each emission-line flux ratio are given in the upper
and lower rows. RMSs are given in parenthesis.

Source LaTeX | All tables | In the text