General Relativity and Quantum Cosmology2016-10-24v4Cosmology and Nongalactic AstrophysicsHigh Energy Astrophysical PhenomenaHigh Energy Physics - Theory
We calculate static and spherically symmetric solutions for the Rastall modification of gravity to describe Neutron Stars (NS). The key feature of the Rastall gravity is the non-conservation of the energy-momentum tensor proportionally to the space-time curvature. Using realistic equations of state for the NS interior we place a conservative bound on the non-GR behaviour of the Rastall theory which should be ≲1% level. This work presents the more stringent constraints on the deviations of GR caused by the Rastall proposal.
@article{arxiv.1506.00567,
title = {Neutron Stars in Rastall Gravity},
author = {A. M. Oliveira and H. E. S. Velten and J. C. Fabris and L. Casarini},
journal= {arXiv preprint arXiv:1506.00567},
year = {2016}
}