All Figures

Figure 1: CO (4-3) spectra at the positions of the red ( top panel) and blue components ( bottom). The thin green line shows the data in 62  km s^-1 channels, and the thick black line in 184  km s^-1 channels. Error bars are 1, and velocities are relative to 96.093 GHz ( 3.79786). The red and blue bars indicate the linewidths; the thick part of the red bar marks channels used in Fig. 3, left. Note that these two positions are less than a beam size away, and are therefore not fully independent.

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In the text

	Figure 2: CO (4-3) position-velocity slice at PA = 51 (i.e. along the radio axis). Horizontal lines mark the radio core and outer lobes. The position zero is 65052 17 , the beam along this cut is 6 , and the contour steps are 0.4 mJy, with the first contour at 0.4 mJy.
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In the text

Figure 3: Velocity-averaged CO maps (thick/white+black contours) of the red ( left) and blue ( right) components. CO contours are -3, -2, 2, 3, ..., 10, with mJy beam-1. The lower left inset shows the CO beam. The two CO maps are superposed on the Ly image, each with its own colour scheme to show the two dark lanes in the Ly. The thin green contours ( left panel) show the 1.4 GHz radio map (Carilli et al. 1994), and the yellow cross indicates the radio core. The thin straight lines ( right panel) indicate a possible AGN or starburst emission-line cone.

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In the text

Figure 4: Thermal dust emission in 4C 41.17. The colourscale shows the 1.2 mm PdBI map convolved with a 3 0 Gaussian (not corrected for the 20'' primary beam). Superposed are the 850 m SCUBA map (thin black contours; beam 14'') and our 1.2 mm MAMBO map (thick white contours; beam 11''). Contours are -2, 2, 3, 4, 5, 6, 7, 8, 9 and 10, with and 0.8 mJy beam-1 for the SCUBA and MAMBO maps, respectively. The white cross indicates the cm-radio core.

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In the text