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arXiv · 2605.16177

Observational signatures of negative mass wormholes through their shadows

Shin'ichi Nojiri·Sergei D. Odintsov·Diego Sáez-Chillón Gómez
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Abstract

Systems containing objects with negative mass (NMOs) are considered. Such a system consists of one object with positive mass and one NMO, where a bound state exists even though the force exerted by the NMO on the object with positive-mass is repulsive. Unlike standard binaries composed of positive-mass objects, the emitted gravitational waves exhibit decreasing frequency and amplitude over time. We propose a model that removes the ghost appearing in the construction of the Ellis-Bronnikov wormhole, a candidate for a NMO. Furthermore, we perform numerical simulations to obtain the optical appearance of such NMOs. The observed luminosity is also compared with the Schwarzschild black hole and with the Simpson-Visser wormhole, revealing clear differences in the photon ring substructure around the central object.

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Shin'ichi Nojiri, Sergei D. Odintsov, Diego Sáez-Chillón Gómez. 2026-05-15. Observational signatures of negative mass wormholes through their shadows. https://arxiv.org/abs/2605.16177

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