The stellar mass-halo mass relation of isolated field dwarfs : A critical test of ΛCDM at the edge of galaxy formation
We fit the rotation curves of isolated dwarf galaxies to directly measure the stellar mass-halo mass relation (M*-M200) over the mass range 5 × 105 ≲ M*/M⊙ ≲ 108. By accounting for cusp-core transformations due to stellar feedback, we find a monotonic relation with little scatter. Such monotonicity implies that abundance matching should yield a similar M*- M200 if the cosmological model is correct
