Scattering angle in a topological star spacetime: A self-force approach
Phys. Rev. D 112, 044008 – Published 6 August, 2025
DOI: https://doi.org/10.1103/cz6k-wqpn
Abstract
We compute the scattering angle for a scalar neutral probe undergoing unbound motion around a topological star, including self-force effects. Moreover, we identify the “electromagnetic” source of the background as a Papapetrou field compatible with the isometries and characterize topological stars by studying their sectional curvature, geometric transport along special curves, and gravitational energy content in terms of the superenergy tensors.
