Relativistic stars in bigravity theory
arXiv:1602.02227 · doi:10.1103/PhysRevD.93.064054
Abstract
Assuming static and spherically symmetric spacetimes in the ghost-free bigravity theory, we find a relativistic star solution, which is very close to that in general relativity. The coupling constants are classified into two classes: Class [I] and Class [II]. Although the Vainshtein screening mechanism is found in the weak gravitational field for both classes, we find that there is no regular solution beyond the critical value of the compactness in Class [I]. This implies that the maximum mass of a neutron star in Class [I] becomes much smaller than that in GR. On the other hand, for the solution in Class [II], the Vainshtein screening mechanism works well even in a relativistic star and the result in GR is recovered.
21 pages, 18 figures. v2: minor improvements, references added
References in corpus (48)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Shapiro delay measurement of a two solar mass neutron star
- Resummation of Massive Gravity
- Generalization of the Fierz-Pauli Action
- The Equation of State from Observed Masses and Radii of Neutron Stars
- Ghost Condensation and a Consistent Infrared Modification of Gravity
- Bimetric Gravity from Ghost-free Massive Gravity
- Refined Neutron-Star Mass Determinations for Six Eclipsing X-Ray Pulsar Binaries
- Astrophysical Measurement of the Equation of State of Neutron Star Matter
- Massive spin-2 fields on black hole spacetimes: Instability of the Schwarzschild and Kerr solutions and bounds on the graviton mass
- A 2.1 Solar Mass Pulsar Measured by Relativistic Orbital Decay
- Analytic solutions in non-linear massive gravity
- Strong interactions and exact solutions in non-linear massive gravity
- Neutron star stiff equation of state derived from cooling phases of the X-ray burster 4U 1724-307
- Cosmological Solutions in Bimetric Gravity and their Observational Tests
- Cosmological solutions with massive gravitons in the bigravity theory
- Exact Schwarzschild-de Sitter black holes in a family of massive gravity models
- Accelerated expansion from ghost-free bigravity: a statistical analysis with improved generality
- FRW Cosmology in Ghost Free Massive Gravity
- Perturbations in Massive Gravity Cosmology
- Bimetric gravity is cosmologically viable
- The mass of the neutron star in Vela X-1
- Stable and unstable cosmological models in bimetric massive gravity
- Instability of black holes in massive gravity
- Hairy black holes in the ghost-free bigravity theory
- Growth Histories in Bimetric Massive Gravity
- Bimetric gravity doubly coupled to matter: theory and cosmological implications
- Black holes with massive graviton hair
- Viable cosmology in bimetric theory
- FRW Cosmological Perturbations in Massive Bigravity
- Restoring General Relativity in massive bi-gravity theory
- Stability of the Schwarzschild-de Sitter black hole in the dRGT massive gravity theory
- Stability analysis of black holes in massive gravity: a unified treatment
- Anisotropic universes in the ghost-free bigravity
- Dark matter in ghost-free bigravity theory: From a galaxy scale to the universe
- Stability and Anti-evaporation of the Schwarzschild-de Sitter Black Holes in Bigravity
- On stars, galaxies and black holes in massive bigravity
- Stability of the Early Universe in Bigravity Theory
- Scalar instabilities in bimetric gravity: The Vainshtein mechanism and structure formation
- Cosmology in ghost-free bigravity theory with twin matter fluids: The origin of "dark matter"
- Linear stability of nonbidiagonal black holes in massive gravity
- Giant wormholes in ghost-free bigravity theory
- Hairy black holes in scalar extended massive gravity
- Properties of Bigravity Solutions in a Solvable Class
- Matter and twin matter in bimetric MOND
- Noether current from surface term, Virasoro algebra and black hole entropy in bigravity
- Perturbations of Cosmological and Black Hole Solutions in Massive gravity and Bi-gravity
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- Asymptotically flat hairy black holes in massive bigravity
- Cosmological perturbation and matter power spectrum in bimetric massive gravity
- Spin-orbit correlation and spatial distributions for spin-0 hadrons
- Slowly-Rotating Neutron Stars in Massive Bigravity
- Vainshtein mechanism in massive gravity nonlinear sigma models