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

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arxiv 1203.3615 v2 pith:IYCT3DZI submitted 2012-03-16 gr-qc astro-ph.SR

Vladimir Dzhunushaliev , Vladimir Folomeev , Burkhard Kleihaus , Jutta Kunz This is my paper · ORCID
classification gr-qcastro-ph.SR
keywords configurationsequilibriummattermixedapproachasymptoticallyboundconsisting
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We study gravitationally bound, spherically symmetric equilibrium configurations consisting of ordinary (neutron-star) matter and of a phantom/ghost scalar field which provides the nontrivial topology in the system. For such mixed configurations, we show the existence of static, regular, asymptotically flat general relativistic solutions. Based on the energy approach, we discuss the stability as a function of the core density of the neutron matter for various sizes of the wormhole throat.

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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 of 10

    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.

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