Fig. 3.

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Phase spiral at different Galactocentric radii with Gaia DR3 data. The panels show the vertical projection of phase space (Z–VZ) coloured by median Vϕ. We only use stars with |ϕ|< 20deg. The regions have a total radial width of 1 kpc and their centres are separated by the same amount. We used bins of ΔZ = 0.02 kpc and ΔVZ = 1 km s−1. The colour-map ranges correspond to the percentiles 30 and 70 of the distribution of Vϕ in each volume in order to maximise the appearance of the spiral. We indicate the number of stars in the bottom part of the panels.
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