论文标题
Nanograv是否找到了宇宙弦的第一个证据？
Has NANOGrav found first evidence for cosmic strings?
论文作者
论文摘要
北美纳米赫茨引力波观测站（Nanograv）最近报告了有力的证据表明，在其12。5年的数据集中影响了PULSAR时序残差的随机普通谱过程。我们证明，这一过程以早期宇宙中宇宙弦乐网络发出的随机重力波背景来接受解释。我们研究了稳定的nambu-goto字符串，以依赖其张力$gμ$和循环尺寸$α$，并表明将来的一系列实验将探测整个可行的参数空间。
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported strong evidence for a stochastic common-spectrum process affecting the pulsar timing residuals in its 12.5-year data set. We demonstrate that this process admits an interpretation in terms of a stochastic gravitational-wave background emitted by a cosmic-string network in the early Universe. We study stable Nambu-Goto strings in dependence of their tension $Gμ$ and loop size $α$ and show that the entire viable parameter space will be probed by an array of future experiments.
