Mapping the properties of blue compact dwarf galaxies: integral field spectroscopy with PMAS

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Volume 520 (September-October 2010)

A&A, 520 (2010) A90

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Table 7:

Physical parameters and chemical abundances.
Parameter	Mrk 407		Mrk 32			Mrk 750		Mrk 206
	Nuclear	Integrated	Knot AB	Knot C	Integrated	Nuclear	Integrated	Nuclear	Integrated
$N_{\rm e}$ ([S II]) (cm^-3)	188	197	110	154	169	<100	<100	154	<100
$T_{\rm e}$ ([O II]) (10⁴ K)	-	-	$1.54\pm0.22$	-	-	$1.13\pm0.02$	$1.23\pm0.09$	-	-
$T_{\rm e}$ ([O III]) (10⁴ K)	-	-	$1.77\pm0.31$	-	-	$1.21\pm0.03$	$1.34\pm0.13$	-	-
$12+\log({\rm O/H})$ - ( $T_{\rm e}$ )	-	-	$7.56\pm0.10$	-	-	$8.12\pm0.03$	$8.00\pm0.07$	-	-
$12+\log({\rm Ne}^{++}/{\rm H}^{+})$	-	-	$6.88\pm0.18$	-	-	$7.37\pm0.04$	$7.27\pm0.12$	-	-
$12+\log({\rm S}^{+}/{\rm H}^{+})$	-	-	$5.80\pm0.09$	-	-	$5.69\pm0.02$	$5.70\pm0.06$	-	-
$12+\log({\rm N}^+/{\rm H}^+)$	-	-	$6.03\pm0.12$	-	-	$6.34\pm0.02$	$6.26\pm0.06$	-	-
$\log({\rm N/O})$	-	-	$-1.19\pm0.20$	-	-	$-1.29\pm0.05$	$-1.26\pm0.12$	-	-
$12+\log({\rm O/H})$ - (N2)	8.26	8.24	8.16	8.24	8.22	8.17	8.17	8.44	8.48
$12+\log({\rm O/H})$ - (O3N2)	8.24	8.24	8.17	8.25	8.25	8.10	8.11	8.41	8.42
$\log$ ([O III]5007/ $\mbox{H$\beta$ }$ )	$0.50\pm0.02$	$0.43\pm0.04$	$0.45\pm0.02$	$0.40\pm0.02$	$0.34\pm0.03$	$0.70\pm0.01$	$0.68\pm0.01$	$0.29\pm0.01$	$0.31\pm0.03$
$\log$ ([N II]6584/ $\mbox{H$\alpha$ }$ )	$-1.05\pm0.04$	$-1.10\pm0.09$	$-1.30\pm0.08$	$-1.09\pm0.07$	$-1.14\pm0.10$	$-1.28\pm0.02$	$-1.27\pm0.04$	$-0.72\pm0.02$	$-0.67\pm0.05$
$\log$ ([S II]6717+6731/ $\mbox{H$\alpha$ }$ )	$-0.70\pm0.03$	$-0.63\pm0.07$	$-0.63\pm0.02$	$-0.69\pm0.04$	$-0.51\pm0.05$	$-1.00\pm0.01$	$-0.91\pm0.03$	$-0.68\pm0.02$	$-0.62\pm0.05$
$\log$ ([O I]6300/ $\mbox{H$\alpha$ }$ )	-	-	$-1.50\pm0.07$	$-1.47\pm0.10$	$-1.27\pm0.07$	$-2.04\pm0.03$	-	$-1.64\pm0.04$	-

Notes. $T_{\rm e}([O {\sc ii}])$ derived from the relation: $T_{\rm e}([O {\sc ii}])=0.72 \times T_{\rm e}([O {\sc iii}]) + 0.26$ found by Pilyugin et al. (2006); $T_{\rm e}$ ([O III]): electron temperature measured from [O III] $\lambda 4363$ ; $12+\log({\rm O/H})$ - ( $T_{\rm e}$ ): direct O/H abundance derived from $T_{\rm e}$ ([O III]); $12+\log({\rm O/H})$ - (N2): O/H derived from the N2 index (Pettini & Pagel 2004); the associated uncertainty is $\pm$ 0.38; $12+\log({\rm O/H})$ - (O3N2): O/H derived from the O3N2 index (Pettini & Pagel 2004); the associated uncertainty is $\pm$ 0.25.

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