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Fig. 8
Left: sketch of a ring with the characteristic distances d1 and d2. Right: surface density profile as derived by the model for a Toomre ring of mass 1.03×1010 M⊙ with d1 = 0.9 kpc and d2 = 0.5 kpc. The vertical blue line represents the size of the CO(2−1) beam for 3C 285.
This figure is made of several images, please see below:
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