论文标题
北部交叉快速无线电爆发项目-II。重复FRB 20180916b，20181030a，20200120e和20201124a的监视
The Northern Cross Fast Radio Burst project - II. Monitoring of repeating FRB 20180916B, 20181030A, 20200120E and 20201124A
论文作者
论文摘要
在这项工作中，我们报告了在Medicina Northern Northern Northern Cross Radio Telescope的南北部门进行的十九个月快速无线电爆发观测活动的结果，在408〜MHz中我们监视了四个重复来源：FRB20180916B，FRB201810303030A，FRB201810A，FRB20200120E和FRB20E和FRB20101010101124A。我们介绍了该仪器的当前状态以及FRB20180916b的三次爆发的检测和表征。鉴于我们的观察时间，我们的检测与我们期望的事件编号一致（$ 2.7 \ pm PM 1.9 $高于我们的10 $σ$，38〜jy〜ms检测阈值），在源的5.2天活动窗口中，进一步证实了源源周期性。我们发现其他来源没有爆发。我们将此结果变成了差异通量分布$α$的斜率的95 \％置信度的下限，为$α> 2.1 $和$α> 2.2 $ 2.2 $，分别为FRB2018103030A和FRB20200120E。鉴于FRB2020201124A的已知率，我们预计我们的竞选活动$ 1.0 \ pm 1.1 $爆发，这与我们的非检测一致。
In this work we report the results of a nineteen-month Fast Radio Burst observational campaign carried out with the North-South arm of the Medicina Northern Cross radio telescope at 408~MHz in which we monitored four repeating sources: FRB20180916B, FRB20181030A, FRB20200120E and FRB20201124A. We present the current state of the instrument and the detection and characterisation of three bursts from FRB20180916B. Given our observing time, our detections are consistent with the event number we expect from the known burst rate ($2.7 \pm 1.9$ above our 10$σ$, 38~Jy~ms detection threshold) in the 5.2 day active window of the source, further confirming the source periodicity. We detect no bursts from the other sources. We turn this result into a 95\% confidence level lower limit on the slope of the differential fluence distribution $α$ to be $α> 2.1$ and $α> 2.2$ for FRB20181030A and FRB20200120E respectively. Given the known rate for FRB20201124A, we expect $1.0 \pm 1.1$ bursts from our campaign, consistent with our non-detection.
