Astronomy & Astrophysics

All Figures

$\begin{figure} \par\includegraphics[width=7.3cm,clip]{3593f1.eps}\end{figure}$ Figure 1: Broad band images of the analyzed pore regions. For details see text and Table 1. Tickmarks are (here and in Figs. 2, 3, 5, 7, and 9) at distances of $1\hbox {$^{\prime \prime }$ }$ .
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In the text

$\begin{figure} \par\includegraphics[width=7.45cm,clip]{fig2.eps}\end{figure}$ Figure 2: Time averaged Doppler maps of the analyzed pore regions. Bright regions (positive values) denote upflows. Contour lines are at $\left < I_{\rm BB}\right > =0.75$ .
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In the text

$\begin{figure} \par\includegraphics[width=7.3cm,clip]{fig3.eps}\end{figure}$ Figure 3: Time averaged horizontal flow fields obtained with LCT methods. Contour lines are the same as in Fig. 2.
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In the text

$\begin{figure} \par\includegraphics[width=16.8cm,clip]{3593f4.eps}\end{figure}$ Figure 4: Enlargements of the averaged Doppler map around P3I overplotted by horizontal flow fields calculated with an LCT algorithm using a Gaussian window function of $1\hbox{$.\!\!^{\prime\prime}$ }2~FWHM$ . The flow field of the left panel has been derived from the first 25 images of the time series, the one in the right panel from the last 24 images of the time series. Contour lines are the same as in Fig. 2.
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In the text

$\begin{figure} \par\includegraphics[width=17.25cm,clip]{3593f5.eps}\end{figure}$ Figure 5: Six snapshots of the evolution of P2I. The lower panels show the broad band intensities, $I_{\rm BB}$ , in the upper panels the corresponding line-of-sight velocities, $v_{\rm LOS}$ , are displayed.
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In the text

$\begin{figure} \par\includegraphics[width=8.4cm,clip]{3593f6.eps}\end{figure}$ Figure 6: a) Temporal evolution of the area (around P2I, see Fig. 5) where $v_{\rm LOS}< -0.5$ km s^-1 (solid line) and of the mean $v_{\rm LOS}$ within this area (dotted line); b) evolution of $I_{\rm BB}$ (solid line) and $v_{\rm LOS}$ (dotted line) averaged in a $9~\times~9$ pixel area around the position of the minimum velocity in the time averaged Doppler map of P3 (see Fig. 2).
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In the text

$\begin{figure} \par\includegraphics[width=6.3cm,clip]{fig7.eps}\end{figure}$ Figure 7: Time averaged Doppler map around P2I overplotted by the contours of the segmented area considered in Fig. 8a.
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In the text

$\begin{figure} \par\includegraphics[width=7.8cm,clip]{fig8.eps}\end{figure}$ Figure 8: Velocity vs. intensity scatter plots of a) the downflow channel surrounding P2I (segmented area shown in Fig. 7); b) a quiet granular field in the lower left corner of P2; c) the umbral boundary of P2I (see text). The solid and the dotted lines represent linear fits to the scatter plots in panel b) and c) and have been overplotted to panel a).
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In the text

$\begin{figure} \par\includegraphics[width=16.8cm,clip]{fig9.eps}\end{figure}$ Figure 9: Twelve snapshots of the evolution of region P2IV, i.e. of the formation of a protopore. Lower panels show broad band images; in the middle panels the corresponding Doppler maps are displayed; upper panels show segmented Doppler maps with $v_{\rm LOS}\geq 0.3$ km s^-1 as white areas and with $v_{\rm LOS}\leq -0.3$ km s^-1 as black areas, respectively. White contours denote broad band intensities $I_{\rm BB} =0.85$ .
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In the text

$\begin{figure} \par\includegraphics[width=7.3cm,clip]{3593f1.eps}\end{figure}$	Figure 1: Broad band images of the analyzed pore regions. For details see text and Table 1. Tickmarks are (here and in Figs. 2, 3, 5, 7, and 9) at distances of $1\hbox {$^{\prime \prime }$ }$ .
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$\begin{figure} \par\includegraphics[width=7.45cm,clip]{fig2.eps}\end{figure}$	Figure 2: Time averaged Doppler maps of the analyzed pore regions. Bright regions (positive values) denote upflows. Contour lines are at $\left < I_{\rm BB}\right > =0.75$ .
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$\begin{figure} \par\includegraphics[width=7.3cm,clip]{fig3.eps}\end{figure}$	Figure 3: Time averaged horizontal flow fields obtained with LCT methods. Contour lines are the same as in Fig. 2.
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$\begin{figure} \par\includegraphics[width=17.25cm,clip]{3593f5.eps}\end{figure}$	Figure 5: Six snapshots of the evolution of P2I. The lower panels show the broad band intensities, $I_{\rm BB}$ , in the upper panels the corresponding line-of-sight velocities, $v_{\rm LOS}$ , are displayed.
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$\begin{figure} \par\includegraphics[width=8.4cm,clip]{3593f6.eps}\end{figure}$	Figure 6: a) Temporal evolution of the area (around P2I, see Fig. 5) where $v_{\rm LOS}< -0.5$ km s^-1 (solid line) and of the mean $v_{\rm LOS}$ within this area (dotted line); b) evolution of $I_{\rm BB}$ (solid line) and $v_{\rm LOS}$ (dotted line) averaged in a $9~\times~9$ pixel area around the position of the minimum velocity in the time averaged Doppler map of P3 (see Fig. 2).
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$\begin{figure} \par\includegraphics[width=6.3cm,clip]{fig7.eps}\end{figure}$	Figure 7: Time averaged Doppler map around P2I overplotted by the contours of the segmented area considered in Fig. 8a.
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$\begin{figure} \par\includegraphics[width=7.8cm,clip]{fig8.eps}\end{figure}$	Figure 8: Velocity vs. intensity scatter plots of a) the downflow channel surrounding P2I (segmented area shown in Fig. 7); b) a quiet granular field in the lower left corner of P2; c) the umbral boundary of P2I (see text). The solid and the dotted lines represent linear fits to the scatter plots in panel b) and c) and have been overplotted to panel a).
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