All Figures

$\begin{figure} \par {\includegraphics[width=8.8cm]{8475fig1.eps} } \end{figure}$ Figure 1: The image is an archival VLT image (see text) and shows the central region of Abell 545. North is up, East to the left. The position of our long slit is indicated. The star pile is visible as the diffuse elongated stucture with three faint embedded sources (g1-g3). Note the bright star which complicates the photometric analysis. Two galaxies (SGH1, 2) are marked for which Schneider et al. (1983) already had given radial velocities.
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In the text

$\begin{figure} \par {\includegraphics[width=8cm]{8475fig2.eps} } \end{figure}$ Figure 2: This graph shows the azimuthally averaged surface brightness profiles of the central galaxy plus the star pile in the bands Bessell V,R,I. At larger radii, the nearby bright star starts to dominate. At the distance of A 545, one arcsec corresponds to 2.64 kpc.
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In the text

$\begin{figure} \par {\includegraphics[width=8cm]{8475fig3.eps} } \end{figure}$ Figure 3: Colour profiles in Bessell V-R and V-I along the star pile's major axis. The innermost colour gradient is an effect of the different seeing of the images. One arcsec corresponds to 2.64 kpc.
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In the text

$\begin{figure} \par {\includegraphics[height=7cm,angle=-90]{8475fig4.eps} } \end{figure}$ Figure 4: Comparison between the surface brightness profiles of the star pile and those of four cD galaxies (Jordán et al. 2004) in units of $L_\odot /$ pc² vs. kpc. Note that because of the logarithmic scale, the major part of the star pile is in fact the central object and heavily influenced by the seeing. The very shallow profile makes the star pile appear very different from the power-law cD galaxies.
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In the text

$\begin{figure} \par {\includegraphics[width=8.8cm]{8475fig5.eps} } \end{figure}$ Figure 5: Spectra are shown of the central object and the star pile at two radii from the central galaxy as indicated in the figure. The uppermost two spectra of the star pile have been extracted over an extended radial range north and south of the central object. The spectra are smoothed by a median of 5 pixels. The star pile has a velocity about 1300 km s^-1 higher than the central galaxy. Dashed lines indicate the positions of some spectral features in the star pile.
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In the text

$\begin{figure} \par {\includegraphics[width=8.8cm]{8475fig6.eps} } \end{figure}$ Figure 6: X-ray contour levels superimposed on the FORS1 V image of the center of Abell 545. The star pile clearly lies at the center of the cluster.
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In the text

$\begin{figure} \par {\includegraphics[width=7.5cm,angle=-90,clip]{8475fig7.eps} } \end{figure}$ Figure 7: This graph shows three hypothetical circular velocity curves for the star pile. The lowest curve refers to the stellar population only, the middle one assumes MOND and the uppermost an NFW-halo with parameters as given in the text.
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In the text

$\begin{figure} \par {\includegraphics[width=8cm]{8475fig2.eps} } \end{figure}$	Figure 2: This graph shows the azimuthally averaged surface brightness profiles of the central galaxy plus the star pile in the bands Bessell V,R,I. At larger radii, the nearby bright star starts to dominate. At the distance of A 545, one arcsec corresponds to 2.64 kpc.
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$\begin{figure} \par {\includegraphics[width=8cm]{8475fig3.eps} } \end{figure}$	Figure 3: Colour profiles in Bessell V-R and V-I along the star pile's major axis. The innermost colour gradient is an effect of the different seeing of the images. One arcsec corresponds to 2.64 kpc.
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$\begin{figure} \par {\includegraphics[width=8.8cm]{8475fig6.eps} } \end{figure}$	Figure 6: X-ray contour levels superimposed on the FORS1 V image of the center of Abell 545. The star pile clearly lies at the center of the cluster.
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$\begin{figure} \par {\includegraphics[width=7.5cm,angle=-90,clip]{8475fig7.eps} } \end{figure}$	Figure 7: This graph shows three hypothetical circular velocity curves for the star pile. The lowest curve refers to the stellar population only, the middle one assumes MOND and the uppermost an NFW-halo with parameters as given in the text.
Open with DEXTER