  We analyze the a set of seventeen rotation curves of Low Surface Brightness
(LSB) galaxies from the The HI Nearby Galaxy Survey (THINGS) with different
mass models to study the core structure and to determine a phase transition
energy scale (E_c) between hot and cold dark matter, due to nonperturbative
effects in the Bound Dark Matter (BDM) model. Our results agree with previous
ones implying the cored profiles are preferred over the N-body motivated cuspy
NFW profile. We find an average galactic core radius of r_c = 260 \times
10^{+/- 1.3} pc and a phase transition energy E_c = 0.11\times 10^{+/- 0.46}
eV, that is of the same order of magnitude as the sum of the neutrino masses.
