Constraints on the cosmic distance duality relation with simulated data of gravitational waves from the Einstein Telescope

Abstract

The cosmic distance duality relation (CDDR) has been test through several astronomical observations in the last years. This relation establishes a simple equation relating the angular diameter ($D_A$) and luminosity ($D_L$) distances at a redshift $z$, $D_L{D}_A^{-1}(1+z{)}^{-2}=\eta =1$. However, only very recently this relation has been observationally tested at high redshifts ($z\approx 3.6$) by using luminosity distances from type Ia supernovae (SNe Ia) and gamma ray bursts (GRBs) plus angular diameter distances from strong gravitational lensing (SGL) observations. The results show that no significant deviation from the CDDR validity has been verified. In this work, we test the potentialities of future luminosity distances from gravitational waves (GWs) sources to impose limit on possible departures of CDDR jointly with current SGL observations. The basic advantage of $D_L$ from GWs is being insensitive to non-conservation of the number of photons. By simulating 600, 900 and 1200 data of GWs using the Einstein Telescope (ET) as reference, we derive limits on $\eta (z)$ function and obtain that the results will be at least competitive with current limits from the SNe Ia $+$ GRBs $+$ SGLs analyses.

The accepted version

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Cited by in corpus (6)

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• A preliminary forecast for cosmological parameter estimation with gravitational-wave standard sirens from TianQin
• Forecast constraints on $f(T)$ gravity with gravitational waves from compact binary coalescences
• Model-independent Test of the Cosmic Distance Duality Relation
• Testing Cosmic Distance-Duality Relation from Future Gravitational Wave Standard Sirens
• On the cosmic distance duality relation and the strong gravitational lens power law density profile