Kinetic screening in nonlinear stellar oscillations and gravitational collapse
Kinetic screening in nonlinear stellar oscillations and gravitational collapse
We consider $k$-essence, a scalar-tensor theory with first-order derivative self-interactions that can screen local scales from scalar fifth forces, while allowing for sizeable deviations from general relativity on cosmological scales. We construct fully nonlinear static stellar solutions that show the presence of this screening mechanism, and we use them as …