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$\begin{figure} \par\includegraphics[width=15.7cm,clip]{6965fig1-colorCMJN.eps} \par % \end{figure}$ Figure 1: The 3.25 km s^-1 resolution channel maps of the intensity of ¹³CO J = 2-1 in M 1-92 from the new+old Plateau de Bure data (see text). The LSR velocity in km s^-1 for the center of each channel is indicated in the upper left corner. Drawn contours are -15 (dashed), and 15 to 90 by 10 mJy beam^-1. The assumed coordinates for the reference position are indicated in the top left corner of the plot.
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In the text

$\begin{figure} \par\includegraphics[width=15.3cm,clip]{6965fig2-colorCMJN.eps} % \end{figure}$ Figure 2: Left: position vs. velocity diagram for a cut along the symmetry axis of the nebula (PA 311 $^\circ$ ). Contours are as in Fig 1. The straight line shows the velocity gradient found along this direction. Center: the same for the central region of the nebula (the rectangle shown on the left) from the maps obtained only with 6Aq data and for a spectral resolution of 0.5 km s^-1. Contours are as before. The white/black straight lines show the gradient of the equatorial/extended components of the nebula. Right: selected channel velocity maps of the center of the nebula, obtained just from the 6Aq data with 0.5 km s^-1 resolution. Contours are as before. The straight line delineate the axial direction. (See also Fig. 1.)
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In the text