![\begin{figure}
\par\includegraphics[width=7.2cm,clip]{4524fig1a.eps}\par\vspace*{3mm}
\includegraphics[width=7.2cm,clip]{4524fig1b.eps}\end{figure}](/articles/aa/full/2006/26/aa4524-05/img61.gif) |
Figure 1:
Upper panel: comparison of the electron temperature-based oxygen abundances with those
derived by Kniazev et al. (2004) (green stars are the galaxies for which our  are derived from the P method and the red stars are the galaxies for which our
are
derived from [O III]
 )
and the median of the
likelihood distribution for
in Tremonti et al. (2004) is given (black crosses).
Lower panel: comparison of the oxygen abundances from the R23 method with the median of the
likelihood distribution for
in Tremonti et al. (2004) (black crosses). |
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[width=16.8cm,clip]{4524fig2.eps}\end{figure}](/articles/aa/full/2006/26/aa4524-05/img65.gif) |
Figure 2: Comparison of the electron temperature-based abundances with those derived from different strong line indicators. Sample I red crosses, and Sample II black filled circles. |
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[width=7.35cm,clip]{4524fig3a.eps}\par\vspace*{5mm}
\includegraphics[width=7.35cm,clip]{4524fig3b.eps}\end{figure}](/articles/aa/full/2006/26/aa4524-05/img71.gif) |
Figure 3:
Upper panel: logarithm of the number ratio of nitrogen to oxygen abundances
plotted against
 .
Lower panel: logarithm of the mean value of the ratio of nitrogen to oxygen abundances
plotted against
.
The black, red and green lines indicate the subsamples of
C > 2.6,
2.3< C < 2.6,
2.0< C < 2.3. |
| Open with DEXTER | |
In the text