论文标题
引力波分布中的偶极性各向异性
Dipole Anisotropy in Gravitational Wave Source Distribution
论文作者
论文摘要
我们对宇宙静止框架的本地运动被认为主要负责宇宙微波背景辐射（CMBR）中观察到的偶极性各向异性。我们研究了这种运动对重力波（GW）源的天空分布的影响。我们确定GW源数计数，质量加权数计数中所得的偶极性各向异性，我们称为质量强度和平均质量。 BBH的数量密度N（M）分布的质量M依赖性直接从数据中获取。我们还沿CMB偶极子的方向测试了每个源可观察到的平均质量的各向异性。当前的数据样本相对较小，并且与各向同性一致。该测试所需的来源数量可能会在不久的将来可用。
Our local motion with respect to the cosmic frame of rest is believed to be dominantly responsible for the observed dipole anisotropy in the Cosmic Microwave Background Radiation (CMBR). We study the effect of this motion on the sky distribution of gravitational wave (GW) sources. We determine the resulting dipole anisotropy in GW source number counts, mass weighted number counts, which we refer to as mass intensity, and mean mass per source. The mass M dependence of the number density n(M) distribution of BBH is taken directly from the data. We also test the anisotropy in the observable mean mass per source along the direction of the CMB dipole. The current data sample is relatively small and consistent with isotropy. The number of sources required for this test is likely to become available in the near future.
