Speaker
加明 施
Description
Scalar fields can play the role of dark matter. Based on the scalar field dark matter scenario, an analytical solution to cored dark matter halos can be given by the superposition of the dark matter halo densities. The solution can be used to explain the flat galactic rotation curves, the Tully-Fisher relation as well as the scaling relation of dark matter halo cores. The characteristic acceleration a0 is related to the structure of the halo core. The calculations are model-independent, and the results hold for any potential of the scalar field as long as the mass term is the leading-order term around its minima. Throughout this talk, relevant discussions and explanations are provided regarding 12 problems about dark matter.