Astronomy & Astrophysics

All Figures

$\begin{figure} \par\includegraphics[width=7.75cm,clip]{8093fig1.eps} \end{figure}$ Figure 1: Chandra 0.2-6.0 keV image centered on Kelu-1AB. The small red ellipse corresponds to the expected position (with errors) of Kelu-1. The extraction region is shown as a blue circle of 1 $^{\prime \prime }$ radius. The nearby background is very low, with sky pixels containing either 0 or 1 event.
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In the text

$\begin{figure} \par\includegraphics[width=7.25cm,clip]{8093fig2.eps} \end{figure}$ Figure 2: Chandra 0.2-6.0 keV light curve of the background around Kelu-1AB, scaled down to the extraction area of the source. The 4 events at the position of Kelu-1AB are placed arbitrarily at a y-value of 0.1; the event energies are also labeled.
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In the text

$\begin{figure} \par\includegraphics[width=7.75cm,clip]{8093fig3a.eps}\hspace*{1.... ...}\hspace*{1.1cm} \includegraphics[width=7.7cm,clip]{8093fig3d.eps} \end{figure}$ Figure 3: Top: luminosity to bolometric luminosity ratio in the radio ( left panel) and in the X-rays ( right panel). The ratio for H $\alpha$ is shown in both panels with its scale on the right y-axis and as small symbols in red. Bottom: similar as above, for surface fluxes. Ultracool dwarfs are shown in black (filled circles in the radio and diamonds in X-rays for detections, empty downward-pointing triangles for radio upper limits and downward-pointing arrows for X-ray upper limits), while M dwarfs are shown in blue (filled upward-pointing triangles for detections, empty downward-pointing triangles for upper limits). The Kelu-1AB points (we assumed that the X-ray flux and radio upper limit were either due to Kelu-1A or to Kelu-1B) are shown as larger symbols. Note that flaring levels (if known) were purposely discarded. The dotted lines show the variations of $L/L_{\rm bol}$ ratios or the surface fluxes vs. $T_{\rm eff}$ for an arbitrary constant luminosity (in radio, X-rays, or H $\alpha$ ).
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In the text

$\begin{figure} \par\includegraphics[width=7.75cm,clip]{8093fig1.eps} \end{figure}$	Figure 1: Chandra 0.2-6.0 keV image centered on Kelu-1AB. The small red ellipse corresponds to the expected position (with errors) of Kelu-1. The extraction region is shown as a blue circle of 1 $^{\prime \prime }$ radius. The nearby background is very low, with sky pixels containing either 0 or 1 event.
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$\begin{figure} \par\includegraphics[width=7.25cm,clip]{8093fig2.eps} \end{figure}$	Figure 2: Chandra 0.2-6.0 keV light curve of the background around Kelu-1AB, scaled down to the extraction area of the source. The 4 events at the position of Kelu-1AB are placed arbitrarily at a y-value of 0.1; the event energies are also labeled.
Open with DEXTER