Astronomy & Astrophysics

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$\begin{figure} \par\includegraphics[width=8.8cm,clip]{6494fig1.eps}\end{figure}$ Figure 1: The shock speeds in the upstream and downstream regions (solid lines) and the spatial distributions of electrons (dashed lines), accelerated at the plane shock.
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In the text

$\begin{figure} \par\includegraphics[width=8.7cm]{6494fig2.eps}\end{figure}$ Figure 2: The electron distribution at the shock front (solid line) and the spatially integrated spectrum of synchrotron radiation (dashed line) produced by electrons accelerated at the shock with compression ratio $\sigma =4$ and equal upstream and downstream magnetic fields ( $\kappa =1$ ). The spectrum of synchrotron radiation obtained using the $\delta$ -function approximation is also shown (dotted line).
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In the text

$\begin{figure} \par\includegraphics[width=8.7cm,clip]{6494fig3.eps}\end{figure}$ Figure 3: The integrated upstream (F₁; dotted line) and downstream (F₂; dashed line) electron spectra given by Eqs. (27), (28), as well as the overall F=F₁+F₂ spectrum (solid line) for the shock with compression ratio $\sigma =4$ and the ratio of the magnetic fields downstream and upstream $k^{-1}=\sqrt {11}$ . The spectra F₁ and F₂ obtained numerically are also shown (thin solid lines).
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{6494fig4.eps}\end{figure}$ Figure 4: Comparison of the function $R(\omega /\omega _{\rm c})$ tabulated by Crusius & Schlickeiser (1986) (dotted line) and the function given by the approximate expression (30) (solid line).
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In the text

$\begin{figure} \includegraphics[width=8.5cm,clip]{6494fig5.eps}\end{figure}$ Figure 5: The energy spectra of synchrotron radiation given by Eqs. (36), (37) and produced by electrons in downstream (dashed line) and upstream (dotted line) regions of the shock with compression ratio $\sigma =4$ and the ratio of the magnetic fields downstream and upstream $\kappa ^{-1}=\sqrt {11}$ . The corresponding spectra obtained numerically are also shown (solid lines).
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{6494fig6.eps}\end{figure}$ Figure 6: The spectrum of IC radiation given by Eqs. (47), (48) and produced by electrons accelerated downstream (dashed line) and upstream (dotted line) the shock with compression ratio $\sigma =4$ and the ratio of the magnetic strength downstream and upstream $\sqrt {11}$ . The sum $J^{{\rm IC}}=J^{{\rm IC}}_1+J^{{\rm IC}}_2$ is shown by the solid line. It is assumed that IC scattering proceeds in the Thompson limit, $b_{\rm KN}=0$ , and that synchrotron losses dominate over the IC loses. The corresponding spectra obtained numerically are also shown (thin solid lines).
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In the text

$\begin{figure} \includegraphics[width=9cm,clip]{6494fig7.eps}\end{figure}$ Figure 7: The spectra of IC radiation produced by electrons accelerated at the shock with compression ratio $\sigma =4$ and the ratio of the magnetic strength downstream and upstream $\sqrt {11}$ for different values of $b_{\rm KN}$ : $b_{\rm KN}=0$ (solid line), $b_{\rm KN}=0.1$ (dashed line), $b_{\rm KN}=0.3$ (dotted line), $b_{\rm KN}=1.0$ (thin solid line), $b_{\rm KN}=3.0$ (thing dashed line) and $b_{\rm KN}=10.0$ (thin dotted line). The case of dominating synchrotron losses is considered.
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In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{6494fig1.eps}\end{figure}$	Figure 1: The shock speeds in the upstream and downstream regions (solid lines) and the spatial distributions of electrons (dashed lines), accelerated at the plane shock.
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$\begin{figure} \par\includegraphics[width=8.5cm,clip]{6494fig4.eps}\end{figure}$	Figure 4: Comparison of the function $R(\omega /\omega _{\rm c})$ tabulated by Crusius & Schlickeiser (1986) (dotted line) and the function given by the approximate expression (30) (solid line).
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$\begin{figure} \includegraphics[width=8.5cm,clip]{6494fig5.eps}\end{figure}$	Figure 5: The energy spectra of synchrotron radiation given by Eqs. (36), (37) and produced by electrons in downstream (dashed line) and upstream (dotted line) regions of the shock with compression ratio $\sigma =4$ and the ratio of the magnetic fields downstream and upstream $\kappa ^{-1}=\sqrt {11}$ . The corresponding spectra obtained numerically are also shown (solid lines).
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