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Home All issues Volume 508 / No 2 (December III 2009) A&A, 508 2 (2009) 615-640 Full HTML
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Table A.18:

Physical conditions and chemical abundances of the ionized gas for the regions analyzed in Tol 1457-262 and Arp 252 (galaxy A, ESO 566-8, and galaxy B, ESO 566-7).
Object Tol 1457-262A Tol 1457-262B Tol 1457-262C ESO 566-8 ESO 566-7a
$T_{\rm e}$(O III) (K) $14~000 \pm 700$ $15~200 \pm 900$ $13~400 \pm 1100$ $8700 \pm 900$ $7900 \pm 1000$
$T_{\rm e}$(O II) (K) $12~500 \pm 600$ $14~200 \pm 700$ $12~400 \pm 1000$ $9100 \pm 800$ $8500 \pm 900$
$N_{\rm e}$ (cm-3) $200 \pm 80$ <100 $200 \pm 100$ $300 \pm 100$ $100 \pm 150$
12+log(O+/H+) $7.59 \pm 0.10$ $7.32 \pm 0.10$ $7.69 \pm 0.15$ $8.23 \pm 0.13$ $8.39 \pm 0.18$
12+log(O++/H+) $7.87 \pm 0.05$ $7.74 \pm 0.06$ 7.82 $\pm$ 0.09 8.04 $\pm$ 0.10 7.82 $\pm$ 0.15
12+log(O/H) 8.05 $\pm$ 0.07c 7.88 $\pm$ 0.07 8.06 $\pm$ 0.11 8.46 $\pm$ 0.11c 8.50 $\pm$ 0.16
log(O++/O+) 0.27 $\pm$ 0.11 0.43 $\pm$ 0.11 0.14 $\pm$ 0.16 -0.19 $\pm$ 0.17 -0.57 $\pm$ 0.22
12+log(N+/H+) 6.02 $\pm$ 0.06 5.70 $\pm$ 0.09 6.10 $\pm$ 0.10 7.49 $\pm$ 0.06 7.57 $\pm$ 0.10
12+log(N/H) 6.48 $\pm$ 0.09 6.27 $\pm$ 0.12 6.47 $\pm$ 0.15 7.71 $\pm$ 0.08 7.67 $\pm$ 0.11
log(N/O) -1.57 $\pm$ 0.11 -1.61 $\pm$ 0.12 -1.59 $\pm$ 0.16 -0.76 $\pm$ 0.12 -0.82 $\pm$ 0.16
12+log(S+/H+) 5.65 $\pm$ 0.05 5.53 $\pm$ 0.06 5.84 $\pm$ 0.09 6.32 $\pm$ 0.07 6.74 $\pm$ 0.12
12+log(S++/H+) 5.95 $\pm$ 0.14 5.95 $\pm$ 0.16 ... ... ...
12+log(S/H) 6.18 $\pm$ 0.10 6.16 $\pm$ 0.15 ... ... ...
log(S/O) -1.88 $\pm$ 0.13 -1.72 $\pm$ 0.18 ... ... ...
12+log(Ne++/H+) 6.99 $\pm$ 0.15 6.87 $\pm$ 0.18 6.98 $\pm$ 0.20 7.48 $\pm$ 0.16 ...
12+log(Ne/H) 7.17 $\pm$ 0.15 7.00 $\pm$ 0.18 7.22 $\pm$ 0.20 7.90 $\pm$ 0.16 ...
log(Ne/O) -0.88 $\pm$ 0.18 -0.88 $\pm$ 0.20 -0.84 $\pm$ 0.22 -0.56 $\pm$ 0.19 ...
12+log(Ar+2/H+) 5.73 $\pm$ 0.08 5.66 $\pm$ 0.14 5.77 $\pm$ 0.17 6.01 $\pm$ 0.14 6.41 $\pm$ 0.18
12+log(Ar+3/H+) ... ... ... 5.48 $\pm$ 0.20 ...
12+log(Ar/H) 5.55 $\pm$ 0.08 5.44 $\pm$ 0.14 5.61 $\pm$ 0.17 6.30 $\pm$ 0.17 6.00 $\pm$ 0.20
log(Ar/O) -2.50 $\pm$ 0.13 -2.44 $\pm$ 0.18 -2.45 $\pm$ 0.20 -2.17 $\pm$ 0.19 -2.49 $\pm$ 0.25
12+log(Fe++/H+) 5.43: 5.62 $\pm$ 0.19 ... 5.80: ...
12+log(Fe/H) 5.81: 5.98 $\pm$ 0.19 ... 6.00: ...
log(Fe/O) -2.24: -1.90 $\pm$ 0.22 ... -2.46: ...
12+log(He+/H+) 10.99 $\pm$ 0.06 10.95 $\pm$ 0.10 10.99 $\pm$ 0.08 11.09 $\pm$ 0.07 11.06:
[O/H]b -0.61 $\pm$ 0.12 -0.78 $\pm$ 0.12 -0.60 $\pm$ 0.16 -0.20 $\pm$ 0.16 -0.16

a Electron temperatures estimated using empirical relations; b [O/H]=log(O/H)-log(O/H)$_{\odot}$, using 12+log(O/H) $_{\odot} = 8.66 \pm 0.05$ (Asplund et al. 2005); c considering the existence of O+3 because of the detection of He II $\lambda $4686, this value should be $\sim$0.01 dex higher.


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