中文

FRB 20240114A中缺乏等离子体透镜效应的强有力证据

高能天体物理现象 2026-07-03 v1
作者: Jiarui Niu , Xiaohui Liu , Nan Xu , Songyu Shen , Junshuo Zhang , Tiancong Wang , Pawan Kumar , Yuanhong Qu , Dejiang Zhou , Weiwei Zhu , Bing Zhang , He Gao , Dongzi Li , Jinlin Han , Di Li , Xuelei Chen , Kejia Lee , Ye Li , Weiyang Wang , Qiuyang Fu , Jiawei Jin , Yanqing Cai , Caisong Liu , Shuo Cao , Ziwei Wu , Heng Xu , Dengke Zhou , Longxuan Zhang , Wanjin Lu , Yi Feng , Chenhui Niu , Jiawei Luo , Rui Luo , Chunfeng Zhang , Shiqian Zhao , Chengwei Liang
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摘要

FRB~20240114A是一个极其活跃的重复快速射电暴,有人提出等离子体透镜效应来解释其爆发率变化、光谱演化以及明显的“碳拷贝”爆发对。利用FAST数据和公开可用的Parkes观测,我们使用一维高斯等离子体透镜模型检验了这一解释。尽管爆发率增强可以单独拟合,但相应的放大峰和去放大谷的偏移远大于预测,并且没有显示出一致的周期性。此外,由于探测到超过10,000次爆发,少数明显的“碳拷贝”对很容易偶然出现。在提议的透镜效应期间,爆发带宽没有系统地变窄,在预测的放大期间,爆发能量也没有显著增强。这些结果没有提供令人信服的证据表明单个高斯等离子体透镜能解释观测到的变率,这更可能由固有的源活动主导。

关键词

快速射电暴 等离子体透镜效应 FRB 20240114A 爆发变率 FAST Parkes

引用

@article{arxiv.2607.02939,
  title  = {No Strong Evidence for Plasma Lensing in FRB 20240114A},
  author = {Jiarui Niu and Xiaohui Liu and Nan Xu and Songyu Shen and Junshuo Zhang and Tiancong Wang and Pawan Kumar and Yuanhong Qu and Dejiang Zhou and Weiwei Zhu and Bing Zhang and He Gao and Dongzi Li and Jinlin Han and Di Li and Xuelei Chen and Kejia Lee and Ye Li and Weiyang Wang and Qiuyang Fu and Jiawei Jin and Yanqing Cai and Caisong Liu and Shuo Cao and Ziwei Wu and Heng Xu and Dengke Zhou and Longxuan Zhang and Wanjin Lu and Yi Feng and Chenhui Niu and Jiawei Luo and Rui Luo and Chunfeng Zhang and Shiqian Zhao and Chengwei Liang},
  journal= {arXiv preprint arXiv:2607.02939},
  year   = {2026}
}

备注

15 pages, 5 figures; submitted for publication