English

Relativistic Stars in dRGT Massive Gravity

General Relativity and Quantum Cosmology 2016-06-15 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Theory

Abstract

We study relativistic stars in the simplest model of the de Rham-Gabadadze-Tolley massive gravity which describes the massive graviton without ghost propagating mode. We consider the hydrostatic equilibrium, and obtain the modified Tolman-Oppenheimer-Volkoff equation and the constraint equation coming from the potential terms in the gravitational action. We give analytical and numerical results for quark and neutron stars and discuss the deviations compared with General Relativity and F(R)F(R) gravity. It is shown that theory under investigation leads to small deviation from the General Relativity in terms of density profiles and mass-radius relation. Nevertheless, such deviation may be observable in future astrophysical probes.

Keywords

Cite

@article{arxiv.1512.00660,
  title  = {Relativistic Stars in dRGT Massive Gravity},
  author = {Taishi Katsuragawa and Shin'ichi Nojiri and Sergei D. Odintsov and Masashi Yamazaki},
  journal= {arXiv preprint arXiv:1512.00660},
  year   = {2016}
}

Comments

15 pages, 5 figures, PRD version

R2 v1 2026-06-22T11:59:31.758Z