Gravitational Scattering of Solitonic Boson Stars: Analytics vs Numerics
Year: 2026
Type: article
Abstract: We study the scattering of two boson stars by comparing four sequences (at fixed energy and varying impact parameter) of numerical relativity simulations to an effective-one-body analytic description, taking into account both gravitational effects (point-mass and tidal) and short-range scalar-field interactions. We obtain excellent agreement between analytical and numerical results, exhibiting the importance of short-range scalar-field interactions for small impact parameters. Our Letter paves the way toward analytic waveform templates of exotic compact object binaries.
Source: Physical Review Letters
DOI: 10.1103/24g1-k5p2
Authors: Thibault Damour, Tamanna Jain, Ulrich Sperhake
Institutions: Institut des Hautes Études Scientifiques, Centre National de la Recherche Scientifique, University of Cambridge, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Sorbonne Université, Laboratoire de Physique de l'Ecole Normale Supérieure, California Institute of Technology, Johns Hopkins University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,750
Awards: UK Involvement in the Operation of Advanced LIGO, Physics and Astrophysics of Compact Binaries, Probing Fundamental Physics with Gravitational-Wave Observations, The DiRAC 2.5x Facility, G4490303832, DiRAC 2.5 Operations 2017-2020, Exploring the Gravitational-wave Universe, DiRAC 2.5 - the pathway to DiRAC Phase 3, G6515499673, Collaborative Research: Understanding Compact Binary Formation With Gravitational Wave Observations, G676769616, G7365282807
OpenAlex ID: W7161948152