Geodesic explorations in the gravimagnetic dipole spacetime : effective potentials for gravity’s attraction
(2026)
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- Authors
- Supervisors
- Govaerts, Jan
- Abstract
- (en) This thesis investigates geodesic motion, for both massive and massless particles, in a specific asymptotically flat, stationary, and axisymmetric spacetime solution to the vacuum Einstein equations: the gravimagnetic dipole. Under a certain choice of parameters, this solution models two equal-mass black holes with opposite NUT charges, co-rotating around a shared axis and connected by a tensionless Misner string. The study focuses on circular geodesics and lensing effects, revealing rich and counter-intuitive dynamics. To bypass computationally intensive numerical methods, original semi-analytical techniques, based on effective potentials, were developed. This work provides a first-of-its-kind exploration of such configurations, offering new perspectives on their geometric and physical properties.
- Affiliations
Citations
Dassy, C. (2026). Geodesic explorations in the gravimagnetic dipole spacetime : effective potentials for gravity’s attraction. https://hdl.handle.net/2078.5/280698