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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.8:

Physical conditions and chemical abundances of the ionized gas of the regions analyzed in IRAS 08208+2816.
Region C #3a #5a #8a #10a
$T_{\rm e}$(O III) (K) $10~100 \pm 700$ $9400 \pm 900$ $9600 \pm 1000$ $6750 \pm 1000$ $9500 \pm 1000$
$T_{\rm e}$(O II) (K) $10~100 \pm 500$ $9600 \pm 700$ $9700 \pm 800$ $7700 \pm 800$ $9650 \pm 800$
$n_{\rm e}$ (cm-3) <100 <100 <100 <100 <100
12+log(O+/H+) 7.77 $\pm$ 0.09 8.15 $\pm$ 0.13 8.08 $\pm$ 0.15 8.39 $\pm$ 0.15 8.20 $\pm$ 0.18
12+log(O++/H+) 8.20 $\pm$ 0.07 8.01 $\pm$ 0.11 8.10 $\pm$ 0.12 8.28 $\pm$ 0.14 7.82 $\pm$ 0.17
12+log(O/H)c 8.33 $\pm$ 0.08 8.24: 8.27: ... ...
12+log(O/H)d 8.41 $\pm$ 0.10 8.39 $\pm$ 0.11 8.39 $\pm$ 0.13 8.64 $\pm$ 0.15 8.35 $\pm$ 0.17
log(O++/O+) 0.43 $\pm$ 0.12 0.15 $\pm$ 0.17 0.02 $\pm$ 0.19 -0.10 $\pm$ 0.20 -0.38 $\pm$ 0.22
12+log(N+/H+) 6.88 $\pm$ 0.05 6.98 $\pm$ 0.08 6.96 $\pm$ 0.10 7.54 $\pm$ 0.10 6.97 $\pm$ 0.14
12+log(N/H) 7.44 $\pm$ 0.10 7.22 $\pm$ 0.11 7.27 $\pm$ 0.13 7.80 $\pm$ 0.16 7.12 $\pm$ 0.17
log(N/O) -0.89 $\pm$ 0.11 -1.17 $\pm$ 0.13 -1.12 $\pm$ 0.14 -0.84 $\pm$ 0.15 -1.22 $\pm$ 0.18
12+log(S+/H+) 5.94 $\pm$ 0.05 6.25 $\pm$ 0.08 6.33 $\pm$ 0.09 6.73 $\pm$ 0.12 6.34 $\pm$ 0.13
12+log(S++/H+) 6.52 $\pm$ 0.16 6.56 $\pm$ 0.28 ... ... ...
12+log(S/H) 6.69 $\pm$ 0.13 6.75 $\pm$ 0.23 ... ... ...
log(S/O) -1.64 $\pm$ 0.16 -1.64 $\pm$ 0.25 ... ... ...
12+log(Ne++/H+) 7.52 $\pm$ 0.11 7.37 $\pm$ 0.19 7.53 $\pm$ 0.22 7.60 $\pm$ 0.25 ...
12+log(Ne/H) 7.66 $\pm$ 0.11 7.75 $\pm$ 0.18 7.82 $\pm$ 0.22 7.96 $\pm$ 0.25 ...
log(Ne/O) -0.67 $\pm$ 0.13 -0.64 $\pm$ 0.21 -0.57 $\pm$ 0.25 -0.68 $\pm$ 0.26 ...
12+log(Ar+2/H+) 5.78 $\pm$ 0.08 6.11 $\pm$ 0.15 ... ... ...
12+log(Ar/H) 5.86 $\pm$ 0.11 5.92 $\pm$ 0.15 ... ... ...
log(Ar/O) -2.51 $\pm$ 0.15 -2.47 $\pm$ 0.18 ... ... ...
12+log(Fe++/H+) 5.90 $\pm$ 0.15 ... ... ... ...
12+log(Fe/H) 6.47 $\pm$ 0.15 ... ... ... ...
log(Fe/O) -1.95 $\pm$ 0.17 ... ... ... ...

12+log(He+/H+) 		10.97 $\pm$ 0.04 10.95 $\pm$ 0.07 11.03 $\pm$ 0.09 10.90 $\pm$ 0.12 10.94:
[O/H]b -0.33 $\pm$ 0.13 -0.27 -0.27 -0.02 -0.31

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 oxygen abundance computed using the direct method; d oxygen abundance computed using the empirical calibrations given by Pilyugin (2001b,a).


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