Mixed neutron-star-plus-wormhole systems: Rotating configurations
arXiv:2210.04425 · doi:10.1103/PhysRevD.107.044060
Abstract
We present rapidly rotating neutron stars featuring wormholes in their centers. They arise in general relativity in the presence of a ghost scalar field. The nuclear matter is described by a polytropic equation of state, yielding realistic masses and radii for the neutron stars. The wormholes possess small circumferential radii of size up to 3 km. With increasing wormhole size, the masses and radii of the stars decrease, while the domain of existence of these rotating mixed neutron-star-plus-wormhole systems retains the characteristic properties of a rotating neutron star domain. The question of stability of the mixed configurations under consideration is briefly discussed.
arXiv comment10 pages, 1 figure, minor corrections to content, version published in PRD
References in corpus (29)
- A Radio Pulsar Spinning at 716 Hz
- Action functionals for relativistic perfect fluids
- Static Axisymmetric Vacuum Solutions and Non-Uniform Black Strings
- Warp drive basics
- Instability of wormholes supported by a ghost scalar field. I. Linear stability analysis
- Radial oscillations of relativistic stars
- Instability of wormholes supported by a ghost scalar field. II. Nonlinear evolution
- Fast Rotating Neutron Stars with Realistic Nuclear Matter Equation of State
- Rapidly Rotating Neutron Stars in Dilatonic Einstein-Gauss-Bonnet Theory
- Scalar and axial quasinormal modes of massive static phantom wormholes
- Rotating Ellis Wormholes in Four Dimensions
- Geometry of Spinning Ellis Wormholes
- Slowly rotating scalar field wormholes: the second order approximation
- Fast Rotating Relativistic Stars: Spectra and Stability without Approximation
- Rotating Wormholes in Five Dimensions
- Rotating wormhole solutions with a complex phantom scalar field
- Boson Stars with Nontrivial Topology
- Mixed neutron-star-plus-wormhole systems: Linear stability analysis
- A Star Harbouring a Wormhole at its Core
- Hiding a neutron star inside a wormhole
- Mixed neutron-star-plus-wormhole systems: Equilibrium configurations
- Symmetric and Asymmetric Wormholes Immersed In Rotating Matter
- Fast Rotating Neutron Stars: Oscillations and Instabilities
- Wormholes Immersed in Rotating Matter
- Wormhole solutions with a complex ghost scalar field and their instability
- Can mixed star-plus-wormhole systems mimic black holes?
- Magnetic fields in mixed neutron-star-plus-wormhole systems
- Wormholes Threaded by Chiral Fields
- Star-plus-wormhole systems with two interacting scalar fields