Stochastic gravitational wave background from smoothed cosmic string loops
Stochastic gravitational wave background from smoothed cosmic string loops
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来自平滑宇宙弦环的随机引力波背景
DOI：
10.1103/physrevd.96.104046
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发表时间：
2017
影响因子：
5
通讯作者：
K. Olum
中科院分区：
文献类型：
--
作者：
J. Blanco;K. Olum
我们对宇宙弦预期的随机引力波背景进行了完整的计算。我们从模拟中获取的弦环总体开始，通过洛伦兹卷积作为引力反作用模型来平滑它们，计算弦总体在任何给定时间发射的引力波的平均频谱，并将其传播通过标准模型宇宙学以找到当今的随机背景。我们考虑了所有已知的影响，包括早期宇宙学相对论自由度数量的变化，以及某些能量出现我们可能从未观察到的罕见爆发的可能性。
We do a complete calculation of the stochastic gravitational wave background to be expected from cosmic strings. We start from a population of string loops taken from simulations, smooth these by Lorentzian convolution as a model of gravitational back reaction, calculate the average spectrum of gravitational waves emitted by the string population at any given time, and propagate it through a standard model cosmology to find the stochastic background today. We take into account all known effects, including changes in the number of cosmological relativistic degrees of freedom at early times and the possibility that some energy is in rare bursts that we might never have observed.
影响因子：
5
作者：
M. J. Stott;Thomas Elghozi;M. Sakellariadou
通讯作者：
M. J. Stott;Thomas Elghozi;M. Sakellariadou