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Fig. 1.


Truth-level Toomre distributions for LSR0 of m12i with δϖ/ϖ < 0.10 and measured vr. Bright yellow regions denote higher density while the darker blue regions denote lower density, with density ranging from 1–103 stars/50 (km s−1)2. The outer (inner) dashed lines denote |v − vLSR| > 224 km s−1 (124 km s−1) with vLSR = (0, 224, 0) km s−1. Velocities are given in Cartesian coordinates centered on the sun, with the x axis oriented away from the Galactic center. Accreted stars are essentially uniformly distributed in this plane, although with structure clearly visible, while the in situ stars peak towards vLSR, as expected.

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