Apocenter Pile-up: Origin of the Stellar Halo Density Break
Authors: Alis J. Deason, Vasily Belokurov, Sergey E. Koposov, and Lachlan Lancaster
2018 The Astrophysical Journal Letters862L1.
Provider: AAS Journals
Caption: Figure 4.
Example orbits in 3D (x, y, z), where the Galactic center is at (x, y, z) = (0, 0, 0). The red lines show example orbits of metal-rich stars on radial orbits, and the blue lines show metal-poor stars on more isotropic orbits.