SIMBAD references

Tidal radii of remote globular clusters (R_GC≥ 35 kpc) are used to provide constraints on the mass profile of the Milky Way galaxy that are independent of kinematic data. The available data are consistent with the profile of an isothermal sphere with circular velocity V_c220±40 km/s in the radial range 35 ≤R_GC≤ 100 kpc, in good agreement with all recent estimates. The more robust constraint at large distances from the Galactic Centre is provided by NGC 2419, yelding an enclosed mass of 1.3^+2.9_–1.0x 10¹² M_☉at R_GC90 kpc.