Analytical external spherical solutions in entangled relativity
arXiv:2106.03426 · doi:10.1140/epjc/s10052-021-09818-x
Abstract
In this manuscript, we present analytical external spherical solutions of entangled relativity, which we compare to numerical solutions obtained in a Tolman-Oppenheimer-Volkoff framework. Analytical and numerical solutions match perfectly well outside spherical compact objects, therefore validating both types of solutions at the same time. The analytical external (hairy) solutions -- which depend on two parameters only -- may be used in order to easily compute observables -- such as X-ray pusle profiles -- without having to rely on an unknown equation of state for matter inside the compact object.
arXiv comment11 pages, 10 figures. Few changes and additions in v2
References in corpus (28)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- The Confrontation between General Relativity and Experiment
- PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
- A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
- Testing General Relativity with Present and Future Astrophysical Observations
- The String Dilaton and a Least Coupling Principle
- Black holes in scalar-tensor gravity
- Universal Interferometric Signatures of a Black Hole's Photon Ring
- The Current Ability to Test Theories of Gravity with Black Hole Shadows
- Black Holes as Elementary Particles
- Constraining the Neutron Star Mass-Radius Relation and Dense Matter Equation of State with NICER. II. Emission from Hot Spots on a Rapidly Rotating Neutron Star
- Collapse to Black Holes in Brans-Dicke Theory: II. Comparison with General Relativity
- Breaking of the equivalence principle in the electromagnetic sector and its cosmological signatures
- Late-time cosmology of scalar-tensor theories with universal multiplicative coupling between the scalar field and the matter Lagrangian
- Perfect fluid Lagrangian and its cosmological implications in theories of gravity with nonminimally coupled matter fields
- Stationary Black Holes with Time-Dependent Scalar Fields
- Intrinsic Solar System decoupling of a scalar-tensor theory with a universal coupling between the scalar field and the matter Lagrangian
- Matter Lagrangian of particles and fluids
- Strong-field effects in massive scalar-tensor gravity for slowly spinning neutron stars and application to X-ray pulsar pulse profiles
- Scalar-tensor theories, trace anomalies and the QCD-frame
- Merging matter and geometry in the same Lagrangian
- On dilatons with intrinsic decouplings
- Particlelike solutions in modified gravity: the Higgs monopole
- Rethinking the link between matter and geometry
- Compact Objects in Entangled Relativity
- On the cosmic convergence mechanism of the massless dilaton
- De Sitter space-times in Entangled Relativity
- Charged black hole and radiating solutions in entangled relativity