All Figures

$\begin{figure}\par \includegraphics[width=180mm]{3373fig1.eps}\par \end{figure}$ Figure 1: A sample image pair from the Dutch Open Telescope (DOT). Left: G-band image. Right: co-temporal and co-spatial Ca II H image, clipped to improve contrast. The network is readily identified in the Ca II H image as regions with enhanced brightness. In the G-band image these areas contain many tiny bright points, often arranged in strings (filigree) within intergranular lanes. These are NBPs. Close inspection shows the presence of isolated IBPs in the internetwork regions.
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In the text

$\begin{figure}\par \includegraphics[width=180mm]{3373fig2}\par \end{figure}$ Figure 2: Example of a magnetic patch, visualized by partial Ca II H images (x-y cutouts, top row), the associated Ca II H x-t slices ( middle row), and the corresponding x-t slices from the IBP map sequence ( bottom row). The images shown here are a selection of the data at intervals of $\Delta t=340~{\rm s}$ starting at $t=240~{\rm s}$ and $\Delta y=0.426\hbox {$^{\prime \prime }$ }$ starting at $y=0.568\hbox {$^{\prime \prime }$ }$ , respectively. The rightmost panels are averages over all data collected in the duration of the sequence ( top panel) or in the y interval shown here ( lower panels). The y location of each x-t slice is shown by a dashed line in the associated x-y panel, while the time of the latter is shown by a dashed line in the corresponding x-t slice.
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In the text

$\begin{figure}\par \includegraphics[width=88mm]{3373fig3.eps}\par \end{figure}$ Figure 3: The temporal average of the Ca II H image sequence over its one-hour duration with the internetwork mask contours overlaid in white. The Ca II H image intensity was scaled logarithmically in order to show contrast in the internetwork. The internetwork mask is computed by taking a 50-pixel boxcar average and thresholding at the mean value.
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In the text

$\begin{figure}\par \includegraphics[width=88mm]{3373fig4.eps}\par \end{figure}$ Figure 4: Integrated x-ycutout, and x-t and y-t slices corresponding to those in Fig. 2 of the binary IBP map sequences for the Ca II H ( left) and G band ( right), showing only those IBPs that group into the central patch. Careful comparison with the rightmost panel in the bottom row of Fig. 2 shows that several IBPs present there are part of another patch, such as at the leftmost edge of the cutout around $t\approx25~{\rm min}$ . Each panel displays the integrated IBP map sequence over the third coordinate, i.e., the x-y map sequence cutouts integrate over time, the x-t slices over y, and the y-t slices over x.
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In the text

$\begin{figure}\par \includegraphics[width=88mm]{3373fig5.eps}\par \end{figure}$ Figure 5: The average Ca II H image with IBPs identified in the Ca II H sequence overlaid in white. The IBPs appear to group in patches that outline edges of cell-like structures, such as around $(x,y)=(10\hbox {$^{\prime \prime }$ },40\hbox {$^{\prime \prime }$ })$ (indicated by a dashed line).
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In the text

$\begin{figure}\par \includegraphics[width=88mm]{3373fig6.eps}\par \end{figure}$ Figure 6: Histograms of IBP lifetimes. Solid: G-band IBP lifetimes. Dotted: Ca II H IBP lifetimes. IBPs with lifetimes shorter than 4 time steps (80 s) are rejected by our processing.
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In the text

$\begin{figure}\par \includegraphics[width=88mm]{3373fig3.eps}\par \end{figure}$	Figure 3: The temporal average of the Ca II H image sequence over its one-hour duration with the internetwork mask contours overlaid in white. The Ca II H image intensity was scaled logarithmically in order to show contrast in the internetwork. The internetwork mask is computed by taking a 50-pixel boxcar average and thresholding at the mean value.
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$\begin{figure}\par \includegraphics[width=88mm]{3373fig5.eps}\par \end{figure}$	Figure 5: The average Ca II H image with IBPs identified in the Ca II H sequence overlaid in white. The IBPs appear to group in patches that outline edges of cell-like structures, such as around $(x,y)=(10\hbox {$^{\prime \prime }$ },40\hbox {$^{\prime \prime }$ })$ (indicated by a dashed line).
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$\begin{figure}\par \includegraphics[width=88mm]{3373fig6.eps}\par \end{figure}$	Figure 6: Histograms of IBP lifetimes. Solid: G-band IBP lifetimes. Dotted: Ca II H IBP lifetimes. IBPs with lifetimes shorter than 4 time steps (80 s) are rejected by our processing.
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