论文标题
哪些二进制系统是定期重复FRB的最有可能的来源？
What binary systems are the most likely sources for periodically repeating FRBs?
论文作者
论文摘要
重复FRB 180916.J0158+65的新发现的16.35天期间为理解重复FRB的来源和发射机制提供了重要的线索。许多模型表明，定期重复的FRB可能与至少包含一个中子星（NSC-FRB系统）的二进制星系有关。有人建议，来自伴侣恒星的强风将NS“梳理”可能提供解决方案。遵循“二进制梳子”模型，我们使用种群合成方法详细研究了伴侣恒星的特性和NSC-FRB系统的性质。我们的主要发现是：1）伴侣明星最有可能是B型明星； 2）FRB 180916的16天的周期恰好在最可能的周期范围内，这可以解释为什么FRB 180916是第一个定期重复FRB的第一个检测到的，我们预计会在10-30天左右观察到更多的定期重复FRB； 3）NSC-FRB系统的出生率足够大，足以满足FRB 180916的观察率要求，该提议支持NSC-FRB可以为定期重复的FRB提供一个重要渠道。
The newly discovered 16.35 days period for repeating FRB 180916.J0158+65 provides an essential clue for understanding the sources and emission mechanism of repeating FRBs. Many models propose that the periodically repeating FRBs might be related to binary star systems that contain at least one neutron star (NSC-FRB system). It has been suggested that the NS "combed" by the strong wind from a companion star might provide a solution. Following the "Binary Comb" model, we use the population synthesis method to study in detail the properties of the companion stars and the nature of NSC-FRB systems. Our main findings are: 1) the companion star is most likely to be a B-type star; 2) the period of 16 days of FRB 180916 happens to fall in the most probable period range, which may explain why FRB 180916 was the first detected periodically repeating FRB, and we expect to observe more periodically repeating FRBs with periods around 10-30 days; 3) the birth rate for NSC-FRB system is large enough to fulfill the event rate requirement set by the observation of FRB 180916, which supports the proposal that NSC-FRB can provide one significant channel for producing periodically repeating FRBs.
