论文标题
第一个钟声/FRB快速无线电爆发目录的事件无关模型分类
Model-independent classification of events from the first CHIME/FRB Fast Radio Burst catalog
论文作者
论文摘要
Chime/FRB协作最近发布了一个目录，其中包含大约一千个快速无线电爆发（FRB），包括它们的光谱和几个重建属性，例如信号宽度，振幅等。我们已经开发了一种与模型的脉冲分类的方法，用于使用交叉校正和聚集算法的分类来分类这些突发，即一定的脉冲范围，即一定程度上的强度分配，即一定程度上的强度分配。在频率上平均的时间功能）。使用该算法，我们确定了两个主要的FRB类别，具有不同的波形形态，同时亮度温度的分布不同。与另一个群集的事件相比，来自一个确定的群集的突发具有较低的亮度温度和宽度较大。两组都包括中继器和一次性事件的爆发。
The CHIME/FRB collaboration has recently published a catalog containing about half a thousand fast radio bursts (FRBs) including their spectra and several reconstructed properties, like signal widths, amplitudes, etc. We have developed a model-independent approach for a classification of these bursts using cross-correlation and clustering algorithms applied to one-dimensional intensity profiles of the bursts (i.e., to amplitudes as a function of time averaged over the frequency). Using this algorithm we identified two major classes of FRBs featuring different waveform morphology, and, simultaneously, different distribution of brightness temperature. Bursts from one of the identified cluster have lower brightness temperatures and larger widths than events from the other cluster. Both groups include bursts from the repeaters and one-off events.
