论文标题
使用FRBPOPPY：磁铁可以产生观察到的快速无线电天空的多维种群建模
Multi-dimensional population modelling using frbpoppy: magnetars can produce the observed Fast Radio Burst sky
论文作者
论文摘要
快速无线电爆发（FRB）是充满活力，短而明亮的瞬变，这些瞬态经常发生在整个无线电天空中。从他们短暂的，一般的一次性性质中，观察性的挑战阻止了识别产生爆发的潜在来源。随着检测到的FRB的数量的增长，现在观察到的亮度，脉冲宽度和分散度度量的分布现在开始形成。但是，通过望远镜和搜索管道在每个FRB调查中始终印记的选择效果，对这些分布的有意义的直接解释是不可能的。在这里，我们表明，多维的FRB种群合成可以找到一个单一的，自符合的FRB来源人群，可以重现主要正在进行的FRB调查的现实生活结果。这意味着现在可以将观察到的分布组合起来，以得出固有的FRB源群体的性质。我们最佳拟合模型的一次性FRB的特征与磁铁群体一致。我们推断该模型并预测FRB未来调查的数量。对于开始的调查，我们这里提出的方法已经可以确定FRB源类别的组成，甚至可能是其亚群的组成。
Fast Radio Bursts (FRBs) are energetic, short, bright transients that occur frequently over the entire radio sky. The observational challenges following from their fleeting, generally one-off nature have prevented identification of the underlying sources producing the bursts. As the population of detected FRBs grows, the observed distributions of brightness, pulse width and dispersion measure now begin to take shape. Meaningful direct interpretation of these distributions is, however, made impossible by the selection effects that telescope and search pipelines invariably imprint on each FRB survey. Here we show that multi-dimensional FRB population synthesis can find a single, self-consistent population of FRB sources that can reproduce the real-life results of the major ongoing FRB surveys. This means that individual observed distributions can now be combined to derive the properties of the intrinsic FRB source population. The characteristics of our best-fit model for one-off FRBs agree with a population of magnetars. We extrapolate this model and predict the number of FRBs future surveys will find. For surveys that have commenced, the method we present here can already determine the composition of the FRB source class, and potentially even its subpopulations.
