All Figures

$\begin{figure} \par\includegraphics[angle=270,width=7.4cm,clip]{6859f01.ps} \end{figure}$ Figure 1: The mean comoving number density of the three fields, for the blue (grey line) and red (black line) subsamples. The dotted lines show the best fits (fitted in the range $0.25\leq z\leq 0.7$ , as indicated by the vertical dotted lines) if an evolution of the number density with redshift is assumed. The dashed lines indicate the constant mean.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f02.ps} \end{figure}$ Figure 2: The overdensities in a mock COMBO-17 survey, calculated for "spectroscopic'' and "multicolour'' redshifts in bins of $\Delta z = 0.02$ ( $z\leq 0.7$ ). A formal fit to the data points (dotted grey line) shows how the amplitudes of both over- and underdensities are diminished.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f03.ps} \end{figure}$ Figure 3: The redshift error distributions of red sequence (solid line) and blue cloud galaxies (dotted line), in the redshift range $0.2\leq z\leq 0.7$ .
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f04.ps} \end{figure}$ Figure 4: Overdensity of the mock galaxies in one "COMBO-17 field''. The solid line is the overdensity of the galaxies with "spectroscopic'' redshifts, the dotted line is the measurement using the same galaxies, but convolved with the error distribution of the red COMBO-17 galaxies, the dashed line is the measurement using the blue COMBO-17 galaxies, and the dashed-dotted line is the overdensity of the mock galaxies, which have first been convolved with the red error distribution, and then further blurred in order to make their redshift inaccuracy comparable to the ones that have been convolved with the blue error distribution.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7.4cm,clip]{6859f05.ps} \end{figure}$ Figure 5: The overdensities in the three COMBO-17 fields, calculated in bins of $\Delta z = 0.05$ (which corresponds to $\Delta r\simeq 132.5~h^{-1}$ Mpc at z=0.3) and steps of $\delta z =0.01$ , versus redshift. The vertical lines indicate the range in which the luminosity function will be estimated. The errors are rms errors calculated from 80 COMBO-17 mock catalogues, but in order to avoid confusion error bars are only plotted for every second data point.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f06.ps}\par\vspace*{2mm} \includegraphics[angle=270,width=7cm,clip]{6859f07.ps} \end{figure}$ Figure 6: The overdensities in the CDFS, calculated in bins of $\Delta z = 0.02$ , for bright ( $M_B- 5 \log_{10}h< -19.5$ ), and faint ( $M_B- 5 \log_{10}h\geq -19.5$ ) galaxies (upper panel), and red sequence and blue cloud galaxies (lower panel). For both the bright and red sequence subsamples, the redshifts have been blurred, in order to make their redshift inaccuracies similar and thus the measurement of the overdensities comparable to the faint and blue cloud subsamples, respectively.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=12cm,clip]{6859f08.ps} \end{figure}$ Figure 7: The luminosity function of the red sequence ( upper panel) and blue cloud ( lower panel) galaxies in the redshift range $0.25\leq z \leq 0.4$ , for the three COMBO-17 fields. The STY fit is overplotted in each panel.
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In the text

$\begin{figure} \par\includegraphics[angle=270,width=7.4cm,clip]{6859f01.ps} \end{figure}$	Figure 1: The mean comoving number density of the three fields, for the blue (grey line) and red (black line) subsamples. The dotted lines show the best fits (fitted in the range $0.25\leq z\leq 0.7$ , as indicated by the vertical dotted lines) if an evolution of the number density with redshift is assumed. The dashed lines indicate the constant mean.
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$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f02.ps} \end{figure}$	Figure 2: The overdensities in a mock COMBO-17 survey, calculated for "spectroscopic'' and "multicolour'' redshifts in bins of $\Delta z = 0.02$ ( $z\leq 0.7$ ). A formal fit to the data points (dotted grey line) shows how the amplitudes of both over- and underdensities are diminished.
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$\begin{figure} \par\includegraphics[angle=270,width=7cm,clip]{6859f03.ps} \end{figure}$	Figure 3: The redshift error distributions of red sequence (solid line) and blue cloud galaxies (dotted line), in the redshift range $0.2\leq z\leq 0.7$ .
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$\begin{figure} \par\includegraphics[angle=270,width=12cm,clip]{6859f08.ps} \end{figure}$	Figure 7: The luminosity function of the red sequence ( upper panel) and blue cloud ( lower panel) galaxies in the redshift range $0.25\leq z \leq 0.4$ , for the three COMBO-17 fields. The STY fit is overplotted in each panel.
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