Fig. 1
Toomre diagram for thin-disk (blue dots), thick-disk (red dots), and halo (black crosses) stars from Reddy et al. (2003, 2006) and for the disk stars of Bensby et al. (2014) (grey dots). The black star marks the position of Arcturus, and the dashed lines delineate constant total space velocities with respect to the LSR of Vtot = 85 and 180 km s−1, respectively (e.g. Nissen 2004, and references therein).
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