Mapping the gravitational-wave background
Mapping the gravitational-wave background
复制标题
绘制引力波背景图
DOI：
10.1088/0264-9381/18/20/307
复制
发表时间：
2001
影响因子：
3.5
通讯作者：
N. Cornish
中科院分区：
文献类型：
--
作者：
N. Cornish
引力波的天空被认为有孤立的明亮光源叠加在弥漫的引力波背景上。背景辐射有两个组成部分：来自未解决的天体物理来源的混乱限制背景;以及宇宙诞生期间形成的宇宙学成分。引力波背景的地图可以通过在天空中扫描引力波探测器来绘制。探测器输出是天空光度分布、探测器响应函数和扫描图案的复杂卷积。在这里，我们研究了一般的反卷积问题，并显示如何LIGO（激光干涉引力天文台）和丽莎（激光干涉空间天线）可以用来检测引力波背景中的各向异性。
The gravitational-wave sky is expected to have isolated bright sources superimposed on a diffuse gravitational-wave background. The background radiation has two components: a confusion limited background from unresolved astrophysical sources; and a cosmological component formed during the birth of the universe. A map of the gravitational-wave background can be made by sweeping a gravitational-wave detector across the sky. The detector output is a complicated convolution of the sky luminosity distribution, the detector response function and the scan pattern. Here we study the general deconvolution problem, and show how LIGO (laser interferometric gravitational observatory) and LISA (laser interferometer space antenna) can be used to detect anisotropies in the gravitational-wave background.