Minimum mass of the extended dark matter halo of the Draco dSph, which is needed to hold a LMXB with the velocity V at the radius 1 kpc. The halo core radius is 0.70 kpc and the assumed mass is M = 5 × 107M⊙ (dashed line) or 8 × 108 M⊙ (solid line) within 0.96 kpc. The truncation radius changes with colours. Black, red, and green correspond to 3, 5, and 10 times the visible radius of the galaxy.
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