The discussion focuses on the challenges of determining the density, scale radius, and normal radius of the Milky Way's halo for use in the NFW profile. It highlights that the scale density is not a definitive numerical fact due to its degeneracy with the scale radius, meaning multiple pairs of values can fit the data. The conversation suggests that expressing halo profiles in terms of v_max may provide clearer insights than relying solely on rho_0. A proposed halo model with constants is shared, along with a reference to a relevant paper for further details. Overall, the complexity of halo modeling is emphasized, particularly in the context of the NFW profile.
