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

@article{Kim2013PhysicsAT, title={Physics at the surface of a star in Eddington-inspired Born-Infeld gravity}, author={Hyeong-Chan Kim}, journal={Physical Review D}, year={2013}, volume={89}, pages={064001} }

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…

## 33 Citations

### The final state of gravitational collapse in Eddington‐inspired Born‐Infeld theory

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- 2017

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## References

SHOWING 1-10 OF 14 REFERENCES

### Phys

- Rev. D 85, 087302
- 2012

### Astrophys

- J. 745, 15
- 2012

### Phys

- Rev. Lett. 107, 031101
- 2011

### Phys

- Rev. D 85, 084020
- 2012

### Rev

- Mod. Phys. 82, 451
- 2010

### Phys

- Rev. D 88, 044032
- 2013

### Phys

- Rev. Lett. 111, 071301
- 2013

### Phys

- Rev. D 86, 084018
- 2012

### Phys

- Rev. Lett. 109, 251102
- 2012

### Phys

- Rev. D 88, 064038
- 2013