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.
11 pages, 10 figures. Few changes and additions in v2
References in corpus (14)
- 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
- 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
- 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
- Stationary Black Holes with Time-Dependent Scalar Fields
- Strong-field effects in massive scalar-tensor gravity for slowly spinning neutron stars and application to X-ray pulsar pulse profiles
- Rethinking the link between matter and geometry
- Particlelike solutions in modified gravity: the Higgs monopole
- Compact Objects in Entangled Relativity
- De Sitter space-times in Entangled Relativity
- Charged black hole and radiating solutions in entangled relativity