Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering

@article{CaasHerrera2020CrosscorrelationOT,
  title={Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering},
  author={Guadalupe Ca{\~n}as-Herrera and Omar Contigiani and Valeri Vardanyan},
  journal={Physical Review D},
  year={2020},
  volume={102}
}
We investigate the correlation between the distribution of galaxies and the predicted gravitational-wave background of astrophysical origin. We show that the large angular scale anisotropies of this background are dominated by nearby non-linear structure, which depends on the notoriously hard to model galaxy power spectrum at small scales. In contrast, we report that the cross-correlation of this signal with galaxy catalogues depends only on linear scales and can be used to constrain the… 

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