All Figures

$\begin{figure} \par {\hspace*{2mm}\includegraphics[width=11.3cm]{5361fig1a.eps}\... ...ce*{2mm}}\vspace*{4mm} \includegraphics[width=11.7cm]{5361fig1b.eps}\end{figure}$ Figure 1: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and the spectrum of SMC3-1 ( bottom). b) Fourier spectrograms illustrating the prewhitening process for SMC3-1. The dotted line indicates the significance level determined as explained in the text. This figure and subsequent ones should be read from up to down and from left to right.
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In the text

$\begin{figure} \par {\hspace*{2mm}\includegraphics[width=11.3cm]{5361fig2a.eps}\... ...ce*{2mm}}\vspace*{4mm} \includegraphics[width=11.7cm]{5361fig2b.eps}\end{figure}$ Figure 2: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-2. b) Fourier spectrograms illustrating the prewhitening process for SMC3-2. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=4.2cm,clip]{5361fig4a.eps}\hspace*{0.5... ...}\hspace*{0.5cm} \includegraphics[width=4.15cm,clip]{5361fig4d.eps} \end{figure}$ Figure 4: a) OGLE light curve ( upper) and spectrum ( bottom) of SMC3-4. b) Fourier spectrogram for SMC3-4. c) Light curve folded with the period of 184 days. d) O-C diagram for local minima outside eclipse; the test period is 23.5658 days.
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In the text

$\begin{figure} \par\includegraphics[width=11.45cm,clip]{5361fig8a.eps}\vspace*{4mm} \includegraphics[width=11.5cm,clip]{5361fig8b.eps} \end{figure}$ Figure 8: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-8. b) Fourier spectrograms illustrating the prewhitening process for SMC3-8. The dotted line indicates the significance level determined as explained in the text. The high frequency at 0.41 c/d is probably an artifact.
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In the text

$\begin{figure} \par\includegraphics[width=11.1cm,clip]{5361fig14a.eps}\vspace*{3.5mm} \includegraphics[width=11.5cm,clip]{5361fig14b.eps} \end{figure}$ Figure 14: a) Detail of the light curve and fit ( upper), the frequency as a function of time ( middle) and the spectrum ( bottom) of SMC3-16. In the middle panel filled squares correspond to our data and open circles to data from Schmidtke et al. (2003). b) Fourier spectrograms illustrating the prewhitening process for SMC3-16. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=8.1cm,clip]{5361fig18.eps} \end{figure}$ Figure 18: The color-color diagram for the stars studied in this paper. The objects showing transient periods are indicated by open circles, those with single stable periods by filled circles, those with multiple periods by open squares, and the ellipsoidal and eclipsing binaries are indicated by asterisks. The colors for galactic main sequence and supergiant O9-G0 stars are also shown by the upper and bottom lines, respectively (Koornneef 1983). The dashed oval indicates the region occupied by the classical Be stars of Dougherty et al. (1994). The arrow shows the reddening vector for R_V = 3.3 and a visual extinction of 2.5 mag.
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In the text

$\begin{figure} \par\includegraphics[width=8.7cm,clip]{5361fig3a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig3b.eps} \end{figure}$ Figure 3: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-3. b) Fourier spectrograms illustrating the prewhitening process for SMC3-3. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par {\hspace*{1.5mm}\includegraphics[width=9cm,clip]{5361fig5a.e... ...mm}}\vspace*{5mm} \includegraphics[width=8.7cm,clip]{5361fig5b.eps} \end{figure}$ Figure 5: a) OGLE light curve and the best fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-5. b) Fourier spectrograms illustrating the prewhitening process for SMC3-5. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig6a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig6b.eps} \end{figure}$ Figure 6: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-6. b) Fourier spectrograms illustrating the prewhitening process for SMC3-6. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig7a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig7b.eps} \end{figure}$ Figure 7: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-7. b) Fourier spectrograms illustrating the prewhitening process for SMC3-7.
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In the text

$\begin{figure} \par\includegraphics[width=8.7cm,clip]{5361fig9a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig9b.eps} \end{figure}$ Figure 9: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-9. b) Fourier spectrograms illustrating the prewhitening process for SMC3-9. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=8.7cm,clip]{5361fig10a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig10b.eps} \end{figure}$ Figure 10: a) OGLE light curve and the best-fitting function ( upper), the light curve folded with the period 184.84 days and 369.69 days ( middle panels) and spectrum ( bottom) of SMC3-10. We suggest that the second periodicity is the right one. b) Fourier spectrograms illustrating the prewhitening process for SMC3-10. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig11a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig11b.eps} \end{figure}$ Figure 11: a) OGLE light curve and the best-fitting function ( upper), light curve folded with the orbital period ( middle, the x-axis units are cycles) and spectrum ( bottom) of SMC3-12. The peaks at 4659 Å and 4772 Å are artifacts not removed by the reduction process; they probably correspond to hits of cosmic rays. b) Fourier spectrograms illustrating the prewhitening process for SMC3-12. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig12a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig12b.eps} \end{figure}$ Figure 12: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-14. b) Fourier spectrograms illustrating the prewhitening process for SMC3-14. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig13a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig13b.eps} \end{figure}$ Figure 13: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-15. b) Fourier spectrograms illustrating the prewhitening process for SMC3-15. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig15a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig15b.eps} \end{figure}$ Figure 15: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-18. b) Fourier spectrograms illustrating the prewhitening process for SMC3-18. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig16a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig16b.eps} \end{figure}$ Figure 16: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-20. b) Fourier spectrograms illustrating the prewhitening process for SMC3-20. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig17a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig17b.eps} \end{figure}$ Figure 17: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-21. b) Fourier spectrograms illustrating the prewhitening process for SMC3-21. The dotted line indicates the significance level determined as explained in the text.
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In the text

$\begin{figure} \par {\hspace{2mm}\includegraphics[width=11.3cm]{5361fig2a.eps}\... ...ce{2mm}}\vspace*{4mm} \includegraphics[width=11.7cm]{5361fig2b.eps}\end{figure}$	Figure 2: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-2. b) Fourier spectrograms illustrating the prewhitening process for SMC3-2. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=4.2cm,clip]{5361fig4a.eps}\hspace{0.5... ...}\hspace{0.5cm} \includegraphics[width=4.15cm,clip]{5361fig4d.eps} \end{figure}$	Figure 4: a) OGLE light curve ( upper) and spectrum ( bottom) of SMC3-4. b) Fourier spectrogram for SMC3-4. c) Light curve folded with the period of 184 days. d) O-C diagram for local minima outside eclipse; the test period is 23.5658 days.
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$\begin{figure} \par\includegraphics[width=11.45cm,clip]{5361fig8a.eps}\vspace*{4mm} \includegraphics[width=11.5cm,clip]{5361fig8b.eps} \end{figure}$	Figure 8: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-8. b) Fourier spectrograms illustrating the prewhitening process for SMC3-8. The dotted line indicates the significance level determined as explained in the text. The high frequency at 0.41 c/d is probably an artifact.
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$\begin{figure} \par\includegraphics[width=8.7cm,clip]{5361fig3a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig3b.eps} \end{figure}$	Figure 3: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-3. b) Fourier spectrograms illustrating the prewhitening process for SMC3-3. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par {\hspace{1.5mm}\includegraphics[width=9cm,clip]{5361fig5a.e... ...mm}}\vspace{5mm} \includegraphics[width=8.7cm,clip]{5361fig5b.eps} \end{figure}$	Figure 5: a) OGLE light curve and the best fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-5. b) Fourier spectrograms illustrating the prewhitening process for SMC3-5. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig6a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig6b.eps} \end{figure}$	Figure 6: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-6. b) Fourier spectrograms illustrating the prewhitening process for SMC3-6. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig7a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig7b.eps} \end{figure}$	Figure 7: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-7. b) Fourier spectrograms illustrating the prewhitening process for SMC3-7.
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$\begin{figure} \par\includegraphics[width=8.7cm,clip]{5361fig9a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig9b.eps} \end{figure}$	Figure 9: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-9. b) Fourier spectrograms illustrating the prewhitening process for SMC3-9. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig12a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig12b.eps} \end{figure}$	Figure 12: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-14. b) Fourier spectrograms illustrating the prewhitening process for SMC3-14. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig13a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig13b.eps} \end{figure}$	Figure 13: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-15. b) Fourier spectrograms illustrating the prewhitening process for SMC3-15. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig15a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig15b.eps} \end{figure}$	Figure 15: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-18. b) Fourier spectrograms illustrating the prewhitening process for SMC3-18. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig16a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig16b.eps} \end{figure}$	Figure 16: a) OGLE light curve and the best-fitting function ( upper) and spectrum ( bottom) of SMC3-20. b) Fourier spectrograms illustrating the prewhitening process for SMC3-20. The dotted line indicates the significance level determined as explained in the text.
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$\begin{figure} \par\includegraphics[width=9cm,clip]{5361fig17a.eps}\vspace*{5mm} \includegraphics[width=9cm,clip]{5361fig17b.eps} \end{figure}$	Figure 17: a) OGLE light curve and the best-fitting function ( upper), detail of the light curve and fit ( middle) and spectrum ( bottom) of SMC3-21. b) Fourier spectrograms illustrating the prewhitening process for SMC3-21. The dotted line indicates the significance level determined as explained in the text.
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