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Fig. 7

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Neutral gas model. The model consists of two 3D-Gaussian components, the Cygnus Rift (left) and the Cygnus SFR (middle), with a spherical (radius 150 pc), low-density (0.05 cm−3) cavity around Cygnus OB2. The total mass is set to match the mass obtained from integrating the neutral hydrogen column density obtained by Astiasarain et al. (2023). For model parameters, see Table 2.

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