Anisotropies in the stochastic gravitational-wave background: Formalism and the cosmic string case
Anisotropies in the stochastic gravitational-wave background: Formalism and the cosmic string case
复制标题
随机引力波背景中的各向异性:形式主义和宇宙弦情况
DOI:
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发表时间:
2018
影响因子:
5
通讯作者:
M. Sakellariadou
中科院分区:
文献类型:
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作者:
A. Jenkins;M. Sakellariadou
We develop a powerful analytical formalism for calculating the energy density of the stochastic gravitational wave background, including a full description of its anisotropies. This is completely general, and can be applied to any astrophysical or cosmological source. As an example, we apply these tools to the case of a network of Nambu-Goto cosmic strings. We find that the anisotropies are relatively insensitive to the choice of model for the string network, but that they are very sensitive to the value of the string tension $Gmu$.