论文标题
通过互相关发现射击噪声，检测各向异性天体物理引力波背景
Detecting the anisotropic astrophysical gravitational wave background in the presence of shot noise through cross-correlations
论文作者
论文摘要
重力波源的空间和时间离散性导致射击噪声，在某些方面，可能会淹没测量引力波背景各向异性的任何尝试。具有足够致密的星系调查的引力波背景图可以减轻此问题，并有可能恢复引力波背景的某些基本特性。我们量化了射击噪声水平，并明确表明，给定敏感性，给定足够的灵敏度，将引力波的首次检测在频率范围内运行（10Hz，100Hz）的首次检测到了背景各向异性的首次检测的机会。
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 (10Hz,100Hz), given sufficient sensitivity.
