Fuzzy Dark Matter in Relativistic Stars

Understand

Fuzzy dark matter (FDM), a practical alternative to cold dark matter, can exist in compact stars.

• Here, applying the FDM equation of state (EoS) constrained by CMB and large-scale structure data, we calculate the structure of relativistic stars in the presence of FDM.
• For this aim, the EoS for the visible matter in neutron stars, quark stars, and hybrid stars from the observational data are employed.
• A piecewise polytropic EoS constrained by the observational data of GW170817 and the data of six low-mass X-ray binaries with thermonuclear burst or the symmetry energy of the nuclear interaction describes the neutron star matter.