Astronomy & Astrophysics

All Figures

$\begin{figure} \par\includegraphics[angle=90,width=18cm,clip]{fig2.ps} \end{figure}$ Figure 1: Discrete Fourier Transform of a) the difference between Northern and Southern hemispheric sunspot areas (N - S); b) the inverse of the total sunspot area ( $\frac{1}{N + S}$ ); c) the normalized North-South asymmetry of sunspot areas ( $\frac{N - S}{N + S}$ ); d) circular convolution of a) and b).
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{fig3.eps} %\end{figure}$ Figure 2: Lomb-Scargle periodogram of the N-S asymmetry of sunspot areas, $\Delta$ , computed as the difference between the Northern and Southern hemispheric sunspot areas. Peak $\alpha$ corresponds to the underlying trend of the time series, while peaks $\beta$ , $\gamma$ and $\epsilon$ have periods of 43.25, 8.65 and 1.44 years, respectively.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[angle=90,width=18cm,clip]{fig2.ps} \end{figure}$	Figure 1: Discrete Fourier Transform of a) the difference between Northern and Southern hemispheric sunspot areas (N - S); b) the inverse of the total sunspot area ( $\frac{1}{N + S}$ ); c) the normalized North-South asymmetry of sunspot areas ( $\frac{N - S}{N + S}$ ); d) circular convolution of a) and b).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{fig3.eps} %\end{figure}$	Figure 2: Lomb-Scargle periodogram of the N-S asymmetry of sunspot areas, $\Delta$ , computed as the difference between the Northern and Southern hemispheric sunspot areas. Peak $\alpha$ corresponds to the underlying trend of the time series, while peaks $\beta$ , $\gamma$ and $\epsilon$ have periods of 43.25, 8.65 and 1.44 years, respectively.
Open with DEXTER