Astronomy & Astrophysics

All Figures

$\begin{figure} \par\includegraphics[width=24cm,clip]{0351fig1.ps} \end{figure}$ Figure 1: The initiation of a CME on February 9, 1999 observed by the SOHO/EIT in the Fe XV bandpass (284 Å). All the panels are running difference images (with contrast increased) except the first one, which is a plain image. Solar west is at bottom right (as shown in the first panel), south is at bottom left corner of images. All times are UT.
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In the text

$\begin{figure} \par\includegraphics[width=16cm,height=15.4cm,clip]{0351fig2.ps} \end{figure}$ Figure 2: The initiation of a CME on May 21-22, 2002 observed by the SOHO/EIT in the Fe XII bandpass (195 Å). All the panels are running difference images (with contrast increased) except the first one, which is a plain image. "b'' marks a brightening, "em'' and "wm'' mark eruptive and wave modes of the EIT wave respectively (see text for explanations). North is on top, west is to the right. All times are UT.
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In the text

$\begin{figure} \par\includegraphics[width=18cm,height=6.5cm,clip]{0351fig3.ps} \end{figure}$ Figure 3: The initiation of a CME on May 27, 2000 observed by the SOHO/EIT in the Fe XII bandpass (195 Å). Top row: running difference images (previous image of a sequence is subtracted from every image). Bottom row: base difference images (the first image of a sequence taken at 07:35:33 UT is subtracted from all the other images). Solar north on top, west at right. White arrows show the propagation of the EIT wave front on-disc. Black arrows show the propagation of a dimming on-disc. All times are UT.
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In the text

$\begin{figure} \par\includegraphics[width=16cm,height=5.2cm,clip]{0351fig4.ps} \end{figure}$ Figure 4: Left panel: the Sun observed by the SOHO/EIT in the Fe XII bandpass (195 Å) on May 12, 1997 at 07:12:47 UT. A pair of transient coronal holes is seen in the northern hemisphere. Middle panel: a difference of the image in the left panel and the last pre-eruption image (taken at 04:34:50 UT) showing the overall dimming resulting from the material lifting during the CME. The white boxes in the left and middle panels show the area used for the calculation of the erupted mass (see text). Right panel: the Sun observed by the SOHO/EIT in the He II bandpass (304 Å) on May 12, 1997 at 07:18:40 UT. Unlike polar coronal holes, transient coronal holes are not seen, although some weak dimming is evident at their locations inferred from the left panel.
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In the text

$\begin{figure} \par\includegraphics[width=8.2cm,clip]{0351fig5.ps} \end{figure}$ Figure 5: Area around NOAA AR 8038 observed by the SOHO/EIT in the Fe XII bandpass (195 Å) on May 12, 1997 at 01:12:46 UT ( left panel) and 07:12:47 UT ( right panel). The image made at 01:12:46 UT is rotated to 07:12:47 UT. Arrows 1 and 2 indicate the pixels for which DEM curves are plotted in Fig. 6.
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In the text

$\begin{figure} \par\includegraphics[width=16.2cm,clip]{0351fig6.ps} \end{figure}$ Figure 6: Differential emission measure (DEM, in cm^-5 K^-1, logarithmic scale) curves for pixels 1 ( left panel) and 2 ( right panel) shown in Fig. 5. Pixel 1 corresponds to a typical pixel that occurred to be inside a TCH after the eruption; pixel 2 - outside the TCHs but inside the main dimming area. Squares and solid curve represent the pre-eruption DEM (01:12:46 UT rotated to 07:12:47 UT); triangles and dashed curve - the post-eruption DEM (07:12:47 UT).
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In the text

0351mv1.mpg

0351mv2.mpg

0351mv3.mpg

0351mv4.mpg

0351mv5.mpg

0351mv6.mpg

0351mv7.mpg

$\begin{figure} \par\includegraphics[width=24cm,clip]{0351fig1.ps} \end{figure}$	Figure 1: The initiation of a CME on February 9, 1999 observed by the SOHO/EIT in the Fe XV bandpass (284 Å). All the panels are running difference images (with contrast increased) except the first one, which is a plain image. Solar west is at bottom right (as shown in the first panel), south is at bottom left corner of images. All times are UT.
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$\begin{figure} \par\includegraphics[width=8.2cm,clip]{0351fig5.ps} \end{figure}$	Figure 5: Area around NOAA AR 8038 observed by the SOHO/EIT in the Fe XII bandpass (195 Å) on May 12, 1997 at 01:12:46 UT ( left panel) and 07:12:47 UT ( right panel). The image made at 01:12:46 UT is rotated to 07:12:47 UT. Arrows 1 and 2 indicate the pixels for which DEM curves are plotted in Fig. 6.
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