Preprint
Aug 2026
No parametrisation, No Problem: A Weakly Modelled Framework to Constrain the Luminosity Distance--Redshift Relation Using Gravitational Wave Sirens
Cosmological tests of general relativity (GR) using gravitational waves (GWs) often rely on parametrised forms of the luminosity distance-redshift ($ d_{\rm L} - z$) relation, which is modified in alternative theories of gravity where the gravitational coupling strength is time-dependent. Although they can lead to stri...
E. Colangeli, K. Leyde, T. Baker et al.
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