Dark Matter Halo: 2D NFW Density Map and Rotation Curves

NFW halo

Halo mass log M200 12.0

Concentration c 10

Stellar fraction f* 0.030

Halo properties

M200

r200

Scale radius rs

rho0

Peak v_circ

DM fraction at 15 kpc

NFW density rho = rho0 / [(r/rs)(1 + r/rs)^2]; enclosed mass M(r) = 4 pi rho0 rs^3 [ln(1+x) - x/(1+x)]; v = sqrt(G M / r). Stars follow a Hernquist profile (a = 2 kpc). Dots orbit at the local circular speed.