Can fermion-boson stars reconcile multimessenger observations of compact stars?

Mixed fermion-boson stars are stable, horizonless, everywhere regular solutions of the coupled Einstein-(complex, massive) Klein-Gordon-Euler system. While isolated neutron and boson uniquely determined by their central energy density, mixed configurations conform an extended parameter space that depends on combination number fermions (ultra-light) bosons. The wider possibilities offered could help explain tension in measurements star masses radii reported recent multi-messenger observations nuclear-physics experiments. In this work we construct equilibrium with realistic equations state for fermionic component different percentages bosonic matter. We show our excellent agreement data, including gravitational-wave events GW170817 GW190814 X-ray pulsars PSR J0030+0451 J0740+6620, as well nuclear physics constraints from PREX-2 experiment.