Journal
PHYSICAL REVIEW D
Volume 102, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.102.023002
Keywords
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Funding
- Science and Technology Facilities Council through an Ernest Rutherford Fellowship [ST/P004474/1]
- Beecroft Trust
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [693024]
- Swiss National Science Foundation
- STFC [ST/P004474/2, ST/S000488/1] Funding Source: UKRI
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The spatial and temporal discreteness of gravitational wave sources leads to shot noise that may, in some regimes, swamp any attempts at measuring the anisotropy of the gravitational wave background. Cross-correlating a gravitational wave background map with a sufficiently dense galaxy survey can alleviate this issue, and potentially recover some of the underlying properties of the gravitational wave background. We quantify the shot noise level and we explicitly show that cross-correlating the gravitational wave background and a galaxy catalog improves the chances of a first detection of the background anisotropy with a gravitational wave observatory operating in the frequency range (10 Hz, 100 Hz), given sufficient sensitivity.
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