Detecting the anisotropic astrophysical gravitational wave background in the presence of shot noise through cross-correlations
Detecting the anisotropic astrophysical gravitational wave background in the presence of shot noise through cross-correlations
复制标题
通过互相关检测散粒噪声存在下的各向异性天体物理引力波背景
DOI:
10.1103/physrevd.102.023002
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发表时间:
2020
影响因子:
5
通讯作者:
Alonso D
中科院分区:
文献类型:
--
作者:
Alonso D
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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DOI:
10.3847/2041-8213/aad800
发表时间:
2018-05
期刊:
The Astrophysical Journal Letters
影响因子:
--
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通讯作者:
M. Fishbach;D. Holz;W. Farr