All Figures

$\begin{figure} \par\includegraphics[width=8.5cm,clip,bb=41 623 483 784]{H4318F1.... ...m} \includegraphics[width=8.5cm,clip,bb=41 374 483 559]{H4318F1.ps} \end{figure}$ Figure 1: Low amplitude magnetohydrodynamic waves propagating through a homogeneous medium of low $\beta$ (Run 1a). a) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda$ at t/P = 4.2. b) B_x/B_z (solid line) and $v_x/v_{\rm A}$ (dotted line) versus $z/\lambda$ at the same time.
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In the text

$\begin{figure} \par\includegraphics[width=18cm,clip,bb=56 671 552 744]{H4318F2.p... ...mm} \includegraphics[width=18cm,clip,bb=56 366 552 449]{H4318F2.ps} \end{figure}$ Figure 2: Magnetohydrodynamic waves propagating through a homogeneous medium of low $\beta$ and $\eta = 0.07$ (Run 1b). a), c), e), g) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda$ at t/P= 16.7, 23.3, 33.3, 46.7. Note the changes in the $\Delta \rho /\rho$ -scale between the frames. b), d), f), h) $z_-/v_{\rm A}$ (solid line) and $z_+/v_{\rm A}$ (dotted line) versus $z/\lambda$ at the same times.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip,bb=68 845 494 1016]{H4318F3... ...m} \includegraphics[width=8.8cm,clip,bb=68 372 494 562]{H4318F3.ps} \end{figure}$ Figure 3: Magnetohydrodynamic waves propagating through a homogeneous medium of $\beta = 0.96$ and $\eta =0.007$ (Run 2a). a) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda _0$ at t/P= 16.7. b) B_x/B_z (solid line) and $v_x/v_{\rm A}$ (dotted line) versus $z/\lambda _0$ at the same time. c) $z_+/v_{\rm A}$ (solid line), $z_-/v_{\rm A}$ (dotted line) as versus $z/\lambda _0$ at the same time.
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In the text

$\begin{figure} \par\includegraphics[width=17.4cm,clip,bb=63 507 496 609]{H4318F4... ...} \includegraphics[width=17.4cm,clip,bb=63 368 496 472]{H4318F4.ps} \end{figure}$ Figure 4: Magnetohydrodynamic waves propagating through a homogeneous medium of $\beta = 0.96$ and $\eta = 0.07$ (Run 2b). The plots focus on the Alfvén wave front at two times, 16.6P ( a), c)) and 66.6 P( b), d)). The upper panels a) and b) show $\Delta \rho /\rho$ versus $z/\lambda _0$ , while the lower panels c) and d) show B_x/B_z versus $z/\lambda _0$ .
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip,bb=69 622 488 784]{H4318F5.... ...m} \includegraphics[width=8.8cm,clip,bb=69 374 488 560]{H4318F5.ps} \end{figure}$ Figure 5: Magnetohydrodynamic waves with $\eta = 0.07$ propagating through a homogeneous medium of $\beta = 0.96$ (Run 2b). a) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda _0$ at t/P= 133. b) Poynting flux, S_z, versus $z/\lambda _0$ at the same time. S₀ is defined as $v_{\rm A} ~ {B_z}^2 / \mu_0$ .
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip,bb=69 622 488 784]{H4318F6.... ...} \includegraphics[width=8.8cm,clip,bb=69 374 488 560]{H4318F6.ps} \end{figure}$ Figure 6: Magnetohydrodynamic waves with $\eta = 0.07$ propagating through a homogeneous medium of a) $\beta = 0.96$ (Run 2b) and b) $\beta = 2$ (Run 3b) versus $z/\lambda _0$ at t/P= 66.7.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip,bb=59 622 480 784]{H4318F7.... ...m} \includegraphics[width=8.8cm,clip,bb=59 374 480 559]{H4318F7.ps} \end{figure}$ Figure 7: Magnetohydrodynamic waves with $\eta = 0.7$ propagating through a homogeneous medium of $\beta = 17$ (Run 4c). a) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda _0$ at t/P= 33. b) $z_+/v_{\rm A}$ (solid line), $z_-/v_{\rm A}$ (dotted line) and $v_x/v_{\rm A}$ (dashed line) versus $z/\lambda _0$ at the same time.
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In the text

$\begin{figure} \par\includegraphics[width=8.6cm,clip,bb=61 630 490 778]{H4318F8.... ...m} \includegraphics[width=8.6cm,clip,bb=61 376 490 553]{H4318F8.ps} \end{figure}$ Figure 8: Magnetohydrodynamic waves with $\eta = 0.7$ propagating through a homogeneous medium of $\beta = 17$ (Run 4c). a) $\Delta \rho /\rho= \frac{\rho - \rho_0}{\rho_0}$ versus $z/\lambda _0$ at t/P= 169. b) $(B_x/B_z)/\eta$ versus $z/\lambda _0$ at the same time.
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In the text