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Mixed neutron-star-plus-wormhole systems: Linear stability analysis

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arxiv 1302.5217 v2 pith:BEVVCLBU submitted 2013-02-21 gr-qc astro-ph.SR

Vladimir Dzhunushaliev , Vladimir Folomeev , Burkhard Kleihaus , Jutta Kunz This is my paper · ORCID
classification gr-qcastro-ph.SR
keywords analysislinearneutronstabilitysystemswormholeconfigurationsconsider
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We consider configurations consisting of a neutron star with a wormhole at the core. The wormhole is held open by a ghost scalar field with a quartic coupling. The neutron matter is described by a perfect fluid with a polytropic equation of state. We obtain static regular solutions for these systems. A stability analysis, however, shows that they are unstable with respect to linear perturbations.

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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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