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This article has an erratum: [https://doi.org/10.1051/0004-6361/201015475e]


Fig. 5

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a) Column densities at the (0, 0) position, computed from the nonequilibrium radiative transfer assuming the beam filling factor for both molecules is 1, as a function of the physical conditions (kinetic temperature, density). The thick black lines show the column densities computed in the LTE assumption. b) Excitation temperature in the same conditions and color conventions as panel a). The black line represents Tex = Tkin.

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

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