All Figures

$\begin{figure} \par\includegraphics[width=13cm,clip]{aa1819f1.ps} \end{figure}$ Figure 1: The ten two dimensional spectra observed through four slits. Skyline residuals are visible as vertical lines with a higher noise level. Slit and spectrum number are indicated, as are the object number from the H $\alpha$ candidate list. The images have been smoothed with a mask of $3\times 3$ pixels. Near the emission line of candidate 229, continuum emission of a serendipitous galaxy is visible. The spectrum of candidate 215 shows a very broad line which almost covers the full spectral range.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{aa1819f2.ps} \end{figure}$ Figure 2: One dimensional spectra of the eight narrow line emitters (histograms) with fits overlayed (solid lines). Object 329 has also an alternative fit for [O II]. Units are in 10^-18 erg cm^-2 s^-1 Å^-1 and $\mu$ m. The grey band denotes the position of a sky line. The dashed line indicates the position of the [N II] line for identification of the detected line with H $\alpha$ . Note the deviant flux density scale in the last row.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{aa1819f3.ps} \end{figure}$ Figure 3: Redshift histogram for the H $\alpha$ emitters (solid) and the previously known Ly $\alpha$ emitters (dotted, and shaded for those within ISAAC field). An arrow denotes the redshift of 1138-262. Also shown is the sensitivity curve of the narrow band filter used for the selection of the H $\alpha$ candidates. The surface beneath the curve is normalized to nine.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{aa1819f3.ps} \end{figure}$	Figure 3: Redshift histogram for the H $\alpha$ emitters (solid) and the previously known Ly $\alpha$ emitters (dotted, and shaded for those within ISAAC field). An arrow denotes the redshift of 1138-262. Also shown is the sensitivity curve of the narrow band filter used for the selection of the H $\alpha$ candidates. The surface beneath the curve is normalized to nine.
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