# 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…

## 22 Citations

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## References

SHOWING 1-10 OF 109 REFERENCES

Anisotropy of the astrophysical gravitational wave background: Analytic expression of the angular power spectrum and correlation with cosmological observations

- Physics
- 2017

Unresolved and resolved sources of gravitational waves are at the origin of a stochastic gravitational wave background. While the computation of its mean density as a function of frequency in a…

First Predictions of the Angular Power Spectrum of the Astrophysical Gravitational Wave Background.

- Physics, GeologyPhysical review letters
- 2018

We present the first predictions for the angular power spectrum of the astrophysical gravitational wave background constituted of the radiation emitted by all resolved and unresolved astrophysical…

Properties of the stochastic astrophysical gravitational wave background: Astrophysical sources dependencies

- Physics, GeologyPhysical Review D
- 2019

This article explores the properties (amplitude and shape) of the angular power spectrum of the anisotropies of the astrophysical gravitational wave background (AGWB) focusing on the signatures of…

Shot noise in the astrophysical gravitational-wave background

- PhysicsPhysical Review D
- 2019

We calculate the noise induced in the anisotropies of the astrophysical gravitational-wave background by finite sampling of both the galaxy distribution and the compact binary coalescence event rate.…

Studying the anisotropy of the gravitational wave stochastic background with LISA

- Physics
- 2001

A plethora of gravitational wave stochastic backgrounds populate the sensitivity window of the Laser Interferometer Space Antenna. We show that LISA can detect the anisotropy of the background…

Estimating the angular power spectrum of the gravitational-wave background in the presence of shot noise

- Geology, PhysicsPhysical Review D
- 2019

There has been much recent interest in studying anisotropies in the astrophysical gravitational-wave (GW) background, as these could provide us with interesting new information about galaxy…

Polarization of a stochastic gravitational wave background through diffusion by massive structures

- PhysicsPhysical Review D
- 2019

The geometric optics approximation traditionally used to study the propagation of gravitational waves on a curved background, breaks down in the vicinity of compact and extended astrophysical…

Anisotropies in the astrophysical gravitational-wave background: Predictions for the detection of compact binaries by LIGO and Virgo

- PhysicsPhysical Review D
- 2018

We develop a detailed anisotropic model for the astrophysical gravitational-wave background, including binary mergers of two stellar-mass black holes, two neutron stars, or one of each, which are…

The signal of the gravitational wave background and the angular correlation of its energy density

- PhysicsPhysical Review D
- 2018

The gravitational wave radiation emitted by all, resolved and unresolved, astrophysical sources in the observable universe generates a stochastic background. This background has a directional…

Projection effects on the observed angular spectrum of the astrophysical stochastic gravitational wave background

- Physics
- 2020

The detection and characterization of the Stochastic Gravitational Wave Background (SGWB) is one of the main goals of Gravitational Wave (GW) experiments. The observed SGWB will be the combination of…