Relativistic stars in a cubic Galileon Universe
  We study relativistic stars in Hordenski theories that evade the
gravitational wave constraints and exhibit the Vainshtein mechanism, focusing
on a model based on the cubic Galileon Lagrangian. We derive the scalar field
profile for static spherically symmetric objects in asymptotically de Sitter
space-time with a linear time dependence. The exterior solution matches to the
black hole solution found in the literature. Due to the Vainshtein mechanism,
the stellar structure is indistinguishable from that of General Relativity with
the same central density as long as the radius of the star is shorter than the
Vainshtein radius. On the other hand, the scalar field is not suppressed beyond
the Vainshtein radius. These solutions have an additional integration constant
in addition to the mass of the star.
