Gaia-DR2 extended kinematical maps - III. Rotation curves analysis, dark matter, and MOND tests

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Fig. 8.

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Ratio of the circular velocity from the Jeans equation and from the force (i.e. Eq. (28)) as a function of the ratio between the average radial velocity and the azimuthal velocity (see Eq. (29)). Black and red circles correspond to the system evolved up to 3/9 Gyr, respectively.

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