Study on the Universal Relation Between the Properties of Dark Matter Admixed Neutron Stars

Dark matter admixed neutron stars are neutron stars that contain dark matter in their composition. In this paper, we mainly study the universal relation between the properties of Dark matter admixed neutron stars. The results show that similar to the results of normal neutron stars, there is also a universal relation between the relevant properties of dark matter admixed neutron stars. The change of the particles mass and the mass ratio of dark matter will cause the observed distinguishable effect between Dark matter admixed neutron stars and normal neutron stars. There exists exponential form of universal relations between the tidal deformability Λ, dimensionless gravitational binding energy E_g/M and the dimensionless moment of inertia I/M³.