论文标题
与Arecibo天文台未检测钟/FRB源
Non-detection of CHIME/FRB sources with the Arecibo Observatory
论文作者
论文摘要
在这项工作中，我们介绍了两个已知的重复快速无线电爆发（FRB）和七个使用chime/frb发现复杂形态的非重复的FRB的后续观察。这些观察结果是用Arecibo天文台327 MHz接收器进行的。我们没有发现这些来源的其他爆发，在我们的后续计划中，Chime/FRB也没有发现这些来源的任何其他爆发。基于这些非潜在，我们为所有九个来源提供了对重复率的限制。我们使用重复的泊松分布和Oppermann等人提出的重复的Weibull分布来计算重复率以上的重复率。 （2018）。对于这两个分布，我们都会发现$λ= 10^{ - 2}的顺序重复上限 - 10^{ - 1} \ text {hr}^{ - 1} $用于所有来源。这些速率比最近发布的重复FRB（如FRB 20121102A和FRB 20201124a）低得多的速度要低得多，这表明可能有低重复的子人群。
In this work, we present follow-up observations of two known repeating fast radio bursts (FRBs) and seven non-repeating FRBs with complex morphology discovered with CHIME/FRB. These observations were conducted with the Arecibo Observatory 327 MHz receiver. We detected no additional bursts from these sources, nor did CHIME/FRB detect any additional bursts from these sources during our follow-up program. Based on these non-detections, we provide constraints on the repetition rate, for all nine sources. We calculate repetition rates above 1 Jy using both a Poisson distribution of repetition and the Weibull distribution of repetition presented by Oppermann et al. (2018). For both distributions, we find repetition upper limits of the order $λ= 10^{-2} - 10^{-1} \text{hr}^{-1}$ for all sources. These rates are much lower than those recently published for notable repeating FRBs like FRB 20121102A and FRB 20201124A, suggesting the possibility of a low-repetition sub-population.
