1 research outputs found
Dark stars: gravitational and electromagnetic observables
Theoretical models of self-interacting dark matter represent a promising
answer to a series of open problems within the so-called collisionless cold
dark matter (CCDM) paradigm. In case of asymmetric dark matter,
self-interactions might facilitate gravitational collapse and potentially lead
to formation of compact objects predominantly made of dark matter. Considering
both fermionic and bosonic equations of state, we construct the equilibrium
structure of rotating dark stars, focusing on their bulk properties, and
comparing them with baryonic neutron stars. We also show that these dark
objects admit the -Love- universal relations, which link their moments of
inertia, tidal deformabilities, and quadrupole moments. Finally, we prove that
stars built with a dark matter equation of state are not compact enough to
mimic black holes in general relativity, thus making them distinguishable in
potential events of gravitational interferometers.Comment: 14 pages, 7 figure