Online Material

Table 1: Journal of FEROS observations and radial velocity measurements.

Table 2: Radial velocity determinations, both from gaussian fit and bisector method, and equivalent widths of H $\alpha$ and [O I] 6300 Å measured on FEROS spectra.

Table 4: Equivalent widths of H $\alpha$ and [O I] 6300 Å measured on the low-resolution spectra (see the atlas in electronic form) and corresponding total extinction, A_V, obtained as described in Sect. 8.

$\begin{figure} \resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f21.ps} }} \end{figure}$	Figure 21: Atlas of low-resolution spectra of T Cha. The panels on the left side display the whole range, those on the right show the interval containing H $\alpha$ and the Lithium line.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f22.ps} }} \end{figure}$	Figure 22: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f23.ps} }} \end{figure}$	Figure 23: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f24.ps} }} \end{figure}$	Figure 24: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f25.ps} }} \end{figure}$	Figure 25: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f26.ps} }} \end{figure}$	Figure 26: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f27.ps} }} \end{figure}$	Figure 27: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f28.ps} }} \end{figure}$	Figure 28: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f29.ps} }} \end{figure}$	Figure 29: Atlas of low-resolution spectra of T Cha, continue.
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$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f30.ps} }} \end{figure}$	Figure 30: Atlas of low-resolution spectra of T Cha, continue.
Open with DEXTER

$\begin{figure} \par\includegraphics[origin=rb,angle=-90,width=17cm,height=10cm,clip]{1073f31.ps} \end{figure}$	Figure 31: Atlas of low-resolution spectra of T Cha, continue.
Open with DEXTER

$\begin{figure} \par\resizebox{17cm}{!}{\rotatebox{-90}{\includegraphics{1073f32.ps} }} \end{figure}$	Figure 32: Atlas of low-resolution spectra of T Cha, continue.
Open with DEXTER