Anisotropies in the gravitational-wave stochastic background

被引：22
|
作者：
Oelmez, S. [1 ]
Mandic, V. [1 ]
Siemens, X. [2 ]
机构：
[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA
[2] Univ Wisconsin, Ctr Gravitat & Cosmol, Milwaukee, WI 53201 USA
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2012年 / 07期
基金：
美国国家科学基金会;
关键词：
gravitational waves / theory; gravitational waves / sources; gravitational waves / experiments; gravitational wave detectors; COSMIC STRINGS; BRANE INFLATION; SPECTRUM;
D O I：
10.1088/1475-7516/2012/07/009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider anisotropies in the stochastic background of gravitational-waves (SBGW) arising from random fluctuations in the number of gravitational-wave sources. We first develop the general formalism which can be applied to different cosmological or astrophysical scenarios. We then apply this formalism to calculate the anisotropies of SBGW associated with the fluctuations in the number of cosmic string loops, considering both cosmic string cusps and kinks. We calculate the anisotropies as a function of angle and frequency.
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页数：10
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