Astronomy & Astrophysics

All Figures

$\begin{figure} { \includegraphics[width=12.7cm,clip]{0510fig1.ps} }\end{figure}$ Figure 1: FLAIR spectra of H $\alpha$ emission objects found in the region centred on 5 $^{\rm h}$ 0 $^{\rm m}$ , $-8\degr0\hbox{$^\prime$ }$ . Left: low resolution spectra in the wavelength region 4800-6600 Å; right: high resolution spectra in the region 6540-6740 Å. Positions of the H $\alpha$ , Li I $\lambda$ 6707 and CaI $\lambda$ 6718 lines are indicated. No lithium absorption can be seen in the spectra of 05060301-0715472 and 05060913-0712394.
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In the text

$\begin{figure} \setcounter{figure}{0} { \includegraphics[width=12.7cm,clip]{0510fig2.ps} }\end{figure}$ Figure 1: continued.
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In the text

$\begin{figure} {\includegraphics[width=12.2cm,clip]{0510fig3.ps} }\end{figure}$ Figure 2: ALFOSC spectra of T Tauri stars projected on the clouds associated with IC 2118.
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In the text

$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics[width=8.8cm,clip]{0510fig4.ps}} \end{figure}$ Figure 3: Distribution of the new PMS stars and other young stellar objects overlaid on the 100 $\mu$ m IRAS image of the region. "+'' signs mark the new classical T Tauri stars (including the candidate cTTS 2MASS J 05112460-0818320), and the candidate wTTS found during the present survey are marked with " $\times$ ''. The open circle shows the position of IRAS 04591-0856 (HHL 17). Asterisks mark the weak-line T Tauri stars identified by Alcalà et al. (1996) in the ROSAT all-sky survey data base.
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In the text

$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics{0510fig5.ps}} \end{figure}$ Figure 4: Positions of the PMS stars in IC 2118 in the J-H vs. $H-K_{\rm s}$ diagram. Loci of zero-age main sequence, giant branch, and classical T Tauri stars, as well as the slope of interstellar reddening are indicated. 2MASS J05112460-0818320, displaying cTTS-like spectrum in the G 1200R image, is located on the giant branch.
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In the text

$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics{0510fig6.ps}} \end{figure}$ Figure 5: Positions of the observed stars in the HRD, assuming a distance of 460 pc. Black dots indicate classical T Tauri stars associated with IC 2118, crosses mark the other target stars and asterisks are for wTTS detected by ROSAT (Alcalà et al. 1996). Dotted lines indicate the isochrones of 10⁶, $3\times 10^6$ , $5\times 10^6$ , 10⁷, $5\times 10^7$ and 10⁸ years, and thin solid lines show the evolutionary tracks from Palla & Stahler's (1999) model. The dashed line corresponds to the birthline and thick solid line indicates the zero age main sequence.
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In the text

$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics{0510fig7.ps}} \end{figure}$ Figure 6: The T Tauri stars of IC 2118 in the HRD, assuming a distance of 210 pc. Isochrones and evolutionary tracks, as well as the birthline and zero age main sequence are indicated as in Fig. 5.
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In the text

$\begin{figure} \setcounter{figure}{0} { \includegraphics[width=12.7cm,clip]{0510fig2.ps} }\end{figure}$	Figure 1: continued.
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$\begin{figure} {\includegraphics[width=12.2cm,clip]{0510fig3.ps} }\end{figure}$	Figure 2: ALFOSC spectra of T Tauri stars projected on the clouds associated with IC 2118.
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$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics{0510fig5.ps}} \end{figure}$	Figure 4: Positions of the PMS stars in IC 2118 in the J-H vs. $H-K_{\rm s}$ diagram. Loci of zero-age main sequence, giant branch, and classical T Tauri stars, as well as the slope of interstellar reddening are indicated. 2MASS J05112460-0818320, displaying cTTS-like spectrum in the G 1200R image, is located on the giant branch.
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$\begin{figure} \par\resizebox{8.8cm}{!}{\includegraphics{0510fig7.ps}} \end{figure}$	Figure 6: The T Tauri stars of IC 2118 in the HRD, assuming a distance of 210 pc. Isochrones and evolutionary tracks, as well as the birthline and zero age main sequence are indicated as in Fig. 5.
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