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Natural Wormholes as Gravitational Lenses

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arxiv astro-ph/9409051 v1 pith:D6KCMO5S submitted 1994-09-20 astro-ph gr-qc

John G. Cramer , Robert L. Forward , Michael S. Morris , Matt Visser , Gregory Benford , Geoffrey A. Landis This is my paper · ORCID
classification astro-phgr-qc
keywords masscompactgravitationalhalomouthnegativewormholesaccrete
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Visser has suggested traversable 3-dimensional wormholes that could plausibly form naturally during Big Bang inflation. A wormhole mouth embedded in high mass density might accrete mass, giving the other mouth a net *negative* mass of unusual gravitational properties. The lensing of such a gravitationally negative anomalous compact halo object (GNACHO) will enhance background stars with a time profile that is observable and qualitatively different from that recently observed for massive compact halo objects (MACHOs) of positive mass. We recommend that MACHO search data be analyzed for GNACHOs.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gravitational Lensing in a Kasner Background: Distinguishing Wormholes and Black Holes

    gr-qc 2026-07 conditional novelty 5.0 of 10

    In a Kasner (anisotropic) universe, wormhole and black-hole lenses produce different directional splits of the Einstein-like scale, while the full critical curves remain nearly circular.

  2. Observational signatures of negative mass wormholes through their shadows

    gr-qc 2026-05 unverdicted novelty 5.0 of 10

    Positive/negative-mass binaries would emit gravitational waves with decreasing frequency and amplitude, and a negative-mass wormhole would cast an asymmetric shadow with richer photon-ring substructure than a black hole.

  3. Ellis-Bronnikov Wormhole Shadows with Spherically Symmetric Accretion Flow

    gr-qc 2026-06 unverdicted novelty 4.0 of 10

    GRRT simulations of spherically symmetric accretion show the Ellis-Bronnikov wormhole yields brighter shadow and photon ring than Schwarzschild, both consistent with EHT M87* data.

  4. Towards a Non-singular Paradigm of Black Hole Physics

    gr-qc 2025-01 unverdicted novelty 1.0 of 10

    This is a review built around a week-long workshop, synthesizing the state and open problems of regular black holes and black hole mimickers as alternatives to singular black holes.

  5. Wormhole geometries in modified gravity

    gr-qc 2024-12

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