All Figures

$\begin{figure} \par\includegraphics[width=6.8cm,clip]{fig1} \end{figure}$ Figure 1: Comparison of the spatial dependence of two components of the mean magnetic field and the triple correlation in Run 3 of B01. The magnetic field is normalized by the equipartition field strength, $B_{\rm eq}$ , and the triple correlation is normalized by $k_1B_{\rm eq}^3$ , but scaled by a factor of 2.5 to make it have a similar amplitude as the mean field. Note that $\overline {B}_x$ (solid line) correlates with T_x (filled dots) and $\overline {B}_z$ (dashed line) correlates with T_z (open dots).
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig2} \end{figure}$ Figure 2: $R_{\rm m}$ dependence of the normalized $\alpha$ for B₀=0.03 (or $B_0/B_{\rm eq}=0.3...0.6$ ) and B₀=0.1 (or $B_0/B_{\rm eq}=0.6...1.5$ ) in cases where the turbulence is driven kinetically with a body force $\mbox{\boldmath $f$ } {}_{\rm kin}$ (lower graph) or magnetically with a forcing term $\mbox{\boldmath$f$ } {}_{\rm mag}$ in the induction equation (upper graph). The vertical bars on the data points give estimates of the error (see text).
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig3}\end{figure}$ Figure 3: Dependence of $\tilde{\alpha}_{\rm K}^{\rm(k)}$ and $\tilde{\alpha}_{\rm M}^{\rm(k)}$ on $R_{\rm m}$ in the kinetically forced case. Vertical bars give error estimates.
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In the text

$\begin{figure} \includegraphics[width=6cm,clip]{fig4}\end{figure}$ Figure 4: Dependence of $\tilde{\alpha}_{\rm K}^{\rm(m)}$ and $\tilde{\alpha}_{\rm M}^{\rm(m)}$ on $R_{\rm m}$ in the magnetically forced case. Vertical bars give error estimates.
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig5}\end{figure}$ Figure 5: Strouhal numbers as a function of $R_{\rm m}$ for different combinations of B₀ and $k_{\rm f}$ . Here, $g_{\rm K}=g_{\rm M}$ is assumed. The horizontal lines are drawn to indicate the range over which the Strouhal numbers are approximately constant. In the second panel therefore, the slope of the lower graph is -0.68.
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig6}\end{figure}$ Figure 6: Magnetic and kinetic Strouhal numbers as a function of $R_{\rm m}$ for different values of B₀ and $k_{\rm f}$ . Here, kinetically and magnetically forced runs have been used to calculate separately $g_{\rm K}\neq g_{\rm M}$ . The horizontal lines are drawn to indicate the range over which the Strouhal numbers are approximately constant.
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig7}\end{figure}$ Figure 7: Magnetic and kinetic Strouhal numbers as a function of $B_0/B_{\rm eq}$ for $\eta =2\times 10^{-3}$ and $k_{\rm f}=1.5$ . Kinetically and magnetically forced runs have been used to calculate separately $g_{\rm K}\neq g_{\rm M}$ .
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig8}\end{figure}$ Figure 8: Compensated shell-integrated power spectra of magnetic energy M(k)and kinetic energy E(k) (the upper solid and dotted lines in the upper panel), and current helicity C(k) and kinetic helicity F(k)(the lower solid and dotted red or gray lines in the upper panel). The energy spectra spectra a made dimensionless by scaling with $\epsilon ^{-2/3}$ , where $\epsilon$ is the total energy dissipation rate. The two helicity spectra are scaled such that, if the fields were nearly fully helical at all scales, they would be close to the corresponding energy spectra, which is not the case. Instead, both energy and helicity spectra show a short subrange where they are best fitted with a k^-5/3 power law. The helicity spectra, compensated by k^5/3, are shown in the lower panel. The turbulence is kinetically forced, with imposed field B₀=0.1, using 512³ meshpoints.
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig9} \end{figure}$ Figure 9: Same as Fig. 8, but for the magnetically forced case with B₀=0.1, 512³ meshpoints.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{fig10a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig10b} \end{figure}$ Figure 10: Visualizations of u_z ( left) and b_z ( right) in the kinetically forced case. B₀=0.03, $\nu =\eta =2\times 10^{-4}$ , $k_{\rm f}=1.5$ , 512³ meshpoints.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{fig11a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig11b}\end{figure}$ Figure 11: Visualizations of u_z ( left) and b_z ( right) in the magnetically forced case. B₀=0.03, $\nu =\eta =2\times 10^{-4}$ , $k_{\rm f}=1.5$ , 512³ meshpoints.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{fig12a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig12b}\end{figure}$ Figure 12: Same as Fig. 11, but for B₀=0.1. There is no clear evidence for a large scale field.
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{fig3}\end{figure}$	Figure 3: Dependence of $\tilde{\alpha}_{\rm K}^{\rm(k)}$ and $\tilde{\alpha}_{\rm M}^{\rm(k)}$ on $R_{\rm m}$ in the kinetically forced case. Vertical bars give error estimates.
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$\begin{figure} \includegraphics[width=6cm,clip]{fig4}\end{figure}$	Figure 4: Dependence of $\tilde{\alpha}_{\rm K}^{\rm(m)}$ and $\tilde{\alpha}_{\rm M}^{\rm(m)}$ on $R_{\rm m}$ in the magnetically forced case. Vertical bars give error estimates.
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$\begin{figure} \par\includegraphics[width=6cm,clip]{fig5}\end{figure}$	Figure 5: Strouhal numbers as a function of $R_{\rm m}$ for different combinations of B₀ and $k_{\rm f}$ . Here, $g_{\rm K}=g_{\rm M}$ is assumed. The horizontal lines are drawn to indicate the range over which the Strouhal numbers are approximately constant. In the second panel therefore, the slope of the lower graph is -0.68.
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$\begin{figure} \par\includegraphics[width=6cm,clip]{fig6}\end{figure}$	Figure 6: Magnetic and kinetic Strouhal numbers as a function of $R_{\rm m}$ for different values of B₀ and $k_{\rm f}$ . Here, kinetically and magnetically forced runs have been used to calculate separately $g_{\rm K}\neq g_{\rm M}$ . The horizontal lines are drawn to indicate the range over which the Strouhal numbers are approximately constant.
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$\begin{figure} \par\includegraphics[width=6cm,clip]{fig7}\end{figure}$	Figure 7: Magnetic and kinetic Strouhal numbers as a function of $B_0/B_{\rm eq}$ for $\eta =2\times 10^{-3}$ and $k_{\rm f}=1.5$ . Kinetically and magnetically forced runs have been used to calculate separately $g_{\rm K}\neq g_{\rm M}$ .
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$\begin{figure} \par\includegraphics[width=6cm,clip]{fig9} \end{figure}$	Figure 9: Same as Fig. 8, but for the magnetically forced case with B₀=0.1, 512³ meshpoints.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{fig10a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig10b} \end{figure}$	Figure 10: Visualizations of u_z ( left) and b_z ( right) in the kinetically forced case. B₀=0.03, $\nu =\eta =2\times 10^{-4}$ , $k_{\rm f}=1.5$ , 512³ meshpoints.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{fig11a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig11b}\end{figure}$	Figure 11: Visualizations of u_z ( left) and b_z ( right) in the magnetically forced case. B₀=0.03, $\nu =\eta =2\times 10^{-4}$ , $k_{\rm f}=1.5$ , 512³ meshpoints.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{fig12a}\hspace*{2mm} \includegraphics[width=8cm,clip]{fig12b}\end{figure}$	Figure 12: Same as Fig. 11, but for B₀=0.1. There is no clear evidence for a large scale field.
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