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We analyze the a set of seventeen rotation curves of Low Surface Brightness(LSB) galaxies from the The HI Nearby Galaxy Survey (THINGS) with differentmass models to study the core structure and to determine a phase transitionenergy scale (E_c) between hot and cold dark matter, due to nonperturbativeeffects in the Bound Dark Matter (BDM) model. Our results agree with previousones implying the cored profiles are preferred over the N-body motivated cuspyNFW profile. We find an average galactic core radius of r_c = 260 \times10^{+/- 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.

Galactic phase transition at Ec=0.11 eV from rotation curves of cored LSB galaxies and nonperturbative dark matter mass