All Figures

$\begin{figure} \par\includegraphics[width=8cm]{2565fig1.eps} \end{figure}$ Figure 1: Differential refraction as a function of wavelength at different airmasses: Solid line - ${\rm AM}=1.27$ ( ${\rm HA}=0$ ), dotted line - ${\rm AM}=1.56$ ( ${\rm HA}=3$ h), short dashed line - ${\rm AM}=3.50$ ( ${\rm HA}=18$ h). I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details).
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In the text

$\begin{figure} \par\includegraphics[width=8cm]{2565fig2.eps}\end{figure}$ Figure 2: The error introduced by our approximate formula (solid line) and the old Edlén formula (dotted line) in the atmospheric refraction assuming $\tan z_{\rm a}=1$ .
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In the text

$\begin{figure} \par\includegraphics[width=8cm]{2565fi3a.eps}\includegraphics[width=8cm]{2565fi3b.eps}\end{figure}$ Figure 3: Slit loss as a function of wavelength at different airmasses. I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details). Notice the different scales used on the plots.
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In the text

$\begin{figure} \par\includegraphics[width=5.5cm]{2565fig4.eps}\end{figure}$ Figure 4: Average slit loss at different slit orientations. Solid line indicates East-West slit orientation, dotted lines shows North-South orientation. I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details).
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In the text

$\begin{figure} \par\includegraphics[width=12.6cm]{2565fig5.eps} % \end{figure}$ Figure 5: Average slit loss at 4500 Å at different slit orientations. I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details - left panel) and a southern field (CDFS, -27:48:30 declination - right panel). I show the effect of slit sky position angle at different hour angle ranges. For sky position angle I use the (unusual) DEIMOS definition, where 90 degree is E-W, 0 degree is N-S.
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In the text

$\begin{figure} \par\includegraphics[width=8cm]{2565fig1.eps} \end{figure}$	Figure 1: Differential refraction as a function of wavelength at different airmasses: Solid line - ${\rm AM}=1.27$ ( ${\rm HA}=0$ ), dotted line - ${\rm AM}=1.56$ ( ${\rm HA}=3$ h), short dashed line - ${\rm AM}=3.50$ ( ${\rm HA}=18$ h). I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8cm]{2565fig2.eps}\end{figure}$	Figure 2: The error introduced by our approximate formula (solid line) and the old Edlén formula (dotted line) in the atmospheric refraction assuming $\tan z_{\rm a}=1$ .
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8cm]{2565fi3a.eps}\includegraphics[width=8cm]{2565fi3b.eps}\end{figure}$	Figure 3: Slit loss as a function of wavelength at different airmasses. I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details). Notice the different scales used on the plots.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=5.5cm]{2565fig4.eps}\end{figure}$	Figure 4: Average slit loss at different slit orientations. Solid line indicates East-West slit orientation, dotted lines shows North-South orientation. I used our sample observation of the Lockman Hole using Keck (see Sect. 1 for details).
Open with DEXTER