A comparison between repeating bursts of FRB 121102 and giant pulses from Crab pulsar and its applications
A comparison between repeating bursts of FRB 121102 and giant pulses from Crab pulsar and its applications
复制标题
FRB 121102重复爆发与蟹状脉冲星巨脉冲的比较及其应用
DOI：
10.1007/s11467-020-1039-4
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发表时间：
2021
影响因子：
7.5
通讯作者：
Xue-Feng Wu
中科院分区：
文献类型：
--
作者：
Fen Lyu;Yan-Zhi Meng;Zhen-Fan Tang;Ye Li;Jun-Jie Wei;Jin-Jun Geng;Lin Lin;Can-Min Deng;Xue-Feng Wu
重复快速射电暴（frb）和脉冲星的大脉冲（GPs）之间有一些相似之处。为了探索两者之间可能的关系，我们利用重复的FRB 121102和蟹状脉冲星的GPs观测，研究了这两种现象的累积能量分布。我们发现GPs（影响度≥130 Jy·ms）的幂律斜率为2.85±0.10。FRB 121102的能量分布可以用光滑破幂律函数很好地拟合。对于突破能量（1.22·1037erg）以上的FRB 121102暴，最佳拟合斜率为2.90−0.44+0.55，与相同观测频率（<1.4 GHz）下的GPs指数相似。我们在超级GPs模型的框架下进一步讨论了重复FRB 121102的物理起源。我们发现涉及毫秒脉冲星的超级GPs模型是可行的，并且更适合解释FRB 121102，尽管磁星爆发模型更受欢迎。
There are some similarities between bursts of repeating fast radio bursts (FRBs) and giant pulses (GPs) of pulsars. To explore possible relations between them, we study the cumulative energy distributions of these two phenomena using the observations of repeating FRB 121102 and the GPs of Crab pulsar. We find that the power-law slope of GPs (with fluence ≥130 Jy·ms) is 2.85±0.10. The energy distribution of FRB 121102 can be well fitted by a smooth broken power-law function. For the bursts of FRB 121102 above the break energy (1.22 · 1037erg), the best-fitting slope is 2.90−0.44+0.55, similar to the index of GPs at the same observing frequency (<1.4 GHz). We further discuss the physical origin of the repeating FRB 121102 in the framework of the super GPs model. And we find that the super GPs model involving a millisecond pulsar is workable and favored for explaining FRB 121102 despite that the magnetar burst model is more popular.