GW170817 Constraints and Causal Structure
Abstract
We demonstrate that RCD satisfies the gravitational wave speed constraint |c_T - c|/c < 1e-15 from GW170817. The tensor mode propagates on the conformally related Einstein metric with c_T = c exactly, while scalar disformal propagation applies only to C excitations. This result holds for the minimal disformal action and remains exact under kinetic completion B' (Paper VII).
Fields of Study & Subjects
Cosmology and Gravitation Theories
Pulsars and Gravitational Waves Research
Black Holes and Theoretical Physics
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 1 March 2026
- Language
- EN
- Document type
- Preprint