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Mixed neutron-star-plus-wormhole systems: Rotating configurations

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arxiv 2210.04425 v2 pith:E7FZ2QNV submitted 2022-10-10 gr-qc

Mixed neutron-star-plus-wormhole systems: Rotating configurations

Vladimir Dzhunushaliev , Vladimir Folomeev , Burkhard Kleihaus , Jutta Kunz This is my paper
classification gr-qc
keywords rotatingmixedneutronradiistarsconfigurationsdomainmasses
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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.

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  1. Mass--radius relations, surface redshift, and echo time of neutron-star--wormhole system with chaotic magnetic field and anisotropic matter

    gr-qc 2025-12 reject novelty 5.0

    Anisotropic magnetized neutron-star–wormhole models predict ultracompact objects with masses above 8 solar masses, surface redshifts above 1.5, and echo times of order 10^-2–10^-1 ms.