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

被引：46
|
作者：
Cusin, Giulia [1 ,2 ]
Pitrou, Cyril [3 ]
Uzan, Jean-Philippe [3 ]
机构：
[1] Univ Geneva, Dept Phys Theor, 24 Quai Ansermet, CH-1211 Geneva 4, Switzerland
[2] Univ Geneva, Ctr Astroparticle Phys, 24 Quai Ansermet, CH-1211 Geneva 4, Switzerland
[3] Sorbonne Univ, CNRS, UMR 7095, Inst Astrophys Paris,Inst Lagrange Paris, 98 Bis, F-75014 Paris, France
来源：
PHYSICAL REVIEW D | 2018年 / 97卷 / 12期
基金：
瑞士国家科学基金会;
关键词：
BLACK-HOLES; ANISOTROPIES; RADIATION;
D O I：
10.1103/PhysRevD.97.123527
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 dependence inherited from the inhomogeneities of the matter distribution. This article proposes a new and independent derivation of the angular dependence of its energy density by focusing on the total gravitational wave signal produced by an ensemble of incoherent sources. This approach clarifies the origin of the angular correlation and the relation between the gravitational wave signal that can be measured by interferometers and the energy density of the stochastic background.
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收藏
页数：13
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