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Fig. 3


CO excitation ladders of Arp 299 A (blue), B (green), and C (red). Intensities are in W m-2. The inset in the bottom right corner shows the three SPIRE beam FWHMs for Arp 299 A, B, and C overplotted on a SCUBA 450 μm archival image. The smaller circle represents the smallest beam FWHM (~17′′) and the larger circle represents the largest beam FWHM (~42′′).

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