论文标题
宇宙弦循环的聚类
Clustering of cosmic string loops
论文作者
论文摘要
宇宙弦环的观察效应取决于环在空间中的分布方式。 Chernoff \ cite {Chernoff}认为，可以在星系中重力捕获循环，并且对于足够小的$gμ$的值，它们的分布遵循了暗物质，与循环的长度无关。我们使用星系形成的球形模型重新分析了这个问题，并全面考虑了重力火箭效应 - 由于引力波的不对称发射而引起的环路加速运动。我们发现，仅捕获大于一定大小的循环，并且捕获的环数的数量比切尔诺夫估计的小数量级。
Observational effects of cosmic string loops depend on how loops are distributed in space. Chernoff \cite{Chernoff} has argued that loops can be gravitationally captured in galaxies and that for sufficiently small values of $Gμ$ their distribution follows that of dark matter, independently of the loop's length. We re-analyze this issue using the spherical model of galaxy formation with full account taken of the gravitational rocket effect -- loop accelerated motion due to asymmetric emission of gravitational waves. We find that only loops greater than a certain size are captured and that the number of captured loops is orders of magnitude smaller than estimated by Chernoff.
