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Fig. 7

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[O i] 63 μm line flux versus strength of the 12CO J = 2–1 (top) and J = 3–2 transitions (bottom). All fluxes are normalised to a distance of 140 pc. Diamonds are group I sources, asterisks group II sources, and squares are debris discs.

This figure is made of several images, please see below:

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