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Fig. 7.

image

Tilt angles as a function of Galactic height for different populations of stars. We show the trends with z for R = 7.5 kpc (top), R = 8.5 kpc (middle) and R = 9.5 kpc (bottom). The red squares, green diamonds, and blue crosses show the results for the halo, thick, and thin disk population described in Sect. 4.3, respectively. The light blue triangles correspond to all LAMOST stars with metallicity information with uncertainties smaller than 0.2 dex, while the black stars are for all stars in the extended sample regardless of whether or not they have metallicity information. The solid black line shows the trend that would correspond to spherical alignment.

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