Effect of high harmonic loops on gravitational wave bounds from cosmic strings,Physical Review D

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Effect of high harmonic loops on gravitational wave bounds from cosmic strings
Physical Review D ( IF 4.6 ) Pub Date : 2021-12-02 , DOI: 10.1103/physrevd.104.123505
Despoina Pazouli ₁ , Konstantinos Palapanidis _{2,

3} , Anastasios Avgoustidis ₁ , Edmund J. Copeland ₁

Affiliation

Based on a binary tree model for the self-intersection of cosmic string loops containing high harmonics we estimate the number of self-intersections of the parent and daughter loops and the associated cusp production to determine the most likely number of cusp events per period on the resultant non-self-intersecting loops, and provide an updated calculation for the gravitational wave signal that arrives on Earth from cusps on such loops. This is done for different numbers of cusps supported from the cosmic strings of the network, and for different harmonic distributions on the loops. We plot our results of the event rate of gravitational waves emanating from the cusps in terms of redshift, having fixed the value of

G μ

and the received frequency of the signal, and compare our results to those in [B. P. Abbott et al., Constraints on cosmic strings using data from the first Advanced LIGO observing run, Phys. Rev. D 97, 102002 (2018); R. Abbott et al., Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run, Phys. Rev. Lett. 126, 241102 (2021)].

中文翻译：

高次谐波环对宇宙弦引力波边界的影响

基于包含高次谐波的宇宙弦环自相交的二叉树模型，我们估计父环和子环的自相交数量和相关的尖峰产生，以确定每个周期最可能的尖峰事件数产生的非自相交环，并为从此类环的尖端到达地球的引力波信号提供更新的计算。这是针对网络的宇宙弦支持的不同数量的尖点以及环路上的不同谐波分布而完成的。我们根据红移绘制了从尖端发出的引力波事件率的结果，并确定了

G μ

和信号的接收频率，并将我们的结果与 [B. P. Abbott等人。, 使用来自第一次高级 LIGO 观测运行的数据对宇宙弦的约束，Phys。修订版 D 97 , 102002 (2018)；R. Abbott等人。, 使用来自第三次高级 LIGO-Virgo 观测运行的数据对宇宙弦的约束，物理学。牧师莱特。 126 , 241102 (2021)]。

更新日期：2021-12-02

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