Physics at the surface of a star in Eddington-inspired Born-Infeld gravity

  title={Physics at the surface of a star in Eddington-inspired Born-Infeld gravity},
  author={Hyeong-Chan Kim},
  journal={Physical Review D},
We study phenomena happening at the surface of a star in Eddington-inspired Born-Infeld (EiBI) gravity. The star is made of particles, which are effectively described by a polytropic fluid. The EiBI theory was known to have a pathology that singularities happen at a star surface. We suggest that the gravitational back-reaction on the particles cures the problem. Strong tidal forces near the (surface) singularity modify the effective equation of state of the particles or make the surface be… 

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