Speaker
Description
We study hybrid stars containing the color superconducting quark matter phase in their cores, described by the relativistic density functional approach. The hadronic matter was modeled within the realistic DD2 equation of state (EoS). We show that depending on the dimensionless vector and diquark couplings of quark matter characteristics of the deconfinement phase transition are varied, allowing us to study the relation between those characteristics and mass-radius relation of neutron stars with quark cores. Moreover, we show that the quark matter EoS can be fitted by the constant speed of sound parameterization giving a simple functional dependence between the most important parameters of the EoS and microscopic parameters of the initial Lagrangian. Based on it, we analyze the properties of the special point of the neutron star sequences.
