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Revisit the periodicity of SGR J1935+2154 bursts with updated sample
Xie, Sheng-Lun; Cai, Ce; Xiong, Shao-Lin; Yu, Yun-Wei; Zhang, Yan-Qiu; Lin, Lin; Zhang, Zhen; Xue, Wang-Chen; Liu, Jia-Cong; Zhao, Yi; Xiao, Shuo; Zheng, Chao; Yi, Qi-Bin; Zhang, Peng; Wang, Ping; Qiao, Rui; Peng, Wen-Xi; Huang, Yue; Ma, Xiang; Zhao, Xiao-Yun; Li, Xiao-Bo; Zheng, Shi-Jie; Ge, Ming-Yu; Li, Cheng-Kui; Li, Xin-Qiao; Wen, Xiang-Yang; Zhang, Fan; Song, Li-Ming; Zhang, Shuang-Nan; Guo, Zhi-Wei; Zhang, Xiao-Lu; Zhao, Guo-Ying; Li, Chao-Yang
2022
发表期刊Monthly Notices of the Royal Astronomical Society (IF:4.961[JCR-2016],4.62[5-Year])
ISSN0035-8711
EISSN1365-2966
卷号517期号:3页码:3854-3863
条目编号IHEP00035023
文章类型Article
摘要Since FRB 200428 has been found to be associated with an X-ray burst from the Galactic magnetar SGR J1935+2154, it is interesting to explore whether the magnetar bursts also follow the similar active periodic behaviour as some repeating FRBs. Previous studies show that there is possible period about 230 day in SGR J1935+2154 bursts. Here, we collected an updated burst sample from SGR J1935+2154, including all bursts reported by Fermi/GBM and GECAM till 2022 January. We also developed a targeted search pipeline to reveal more bursts from SGR J1935+2154 in the Fermi/GBM data from 2008 August to 2014 December (i.e. before the first burst detected by Swift/BAT). With this burst sample, we re-analyzed the possible periodicity of SGR J1935+2154 bursts using the Period Folding and Lomb-Scargle Periodogram methods. Our results show that the periodicity ~238 day reported in literature is probably fake and the observation effects may introduce false periods (i.e. 55 day) according to simulation tests. We find that, for the current burst sample, the most probable period is 126.88±2.05 day, which could be interpreted as the precession of the magnetar. However, we note that the whole burst history is very complicated and difficult to be perfectly accommodated with any period reported thus far, therefore more monitoring observations of SGR J1935+2154 are required to test any periodicity hypothesis.
关键词methods: data analysis stars: magnetars Astrophysics - High Energy Astrophysical Phenomena
DOI10.1093/mnras/stac2918
收录类别ADS
语种英语
ADS Bibcode2022MNRAS.517.3854X
ADS URLhttps://ui.adsabs.harvard.edu/abs/2022MNRAS.517.3854X
ADS引文https://ui.adsabs.harvard.edu/abs/2022MNRAS.517.3854X/citations
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被引频次:14 [ADS]
文献类型期刊论文
条目标识符https://ir.ihep.ac.cn/handle/311005/299894
专题粒子天体物理中心
管理与技术支持
硬X射线调制望远镜卫星
作者单位中国科学院高能物理研究所
第一作者单位中国科学院高能物理研究所
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Xie, Sheng-Lun,Cai, Ce,Xiong, Shao-Lin,et al. Revisit the periodicity of SGR J1935+2154 bursts with updated sample[J]. Monthly Notices of the Royal Astronomical Society,2022,517(3):3854-3863.
APA Xie, Sheng-Lun.,Cai, Ce.,Xiong, Shao-Lin.,Yu, Yun-Wei.,Zhang, Yan-Qiu.,...&Li, Chao-Yang.(2022).Revisit the periodicity of SGR J1935+2154 bursts with updated sample.Monthly Notices of the Royal Astronomical Society,517(3),3854-3863.
MLA Xie, Sheng-Lun,et al."Revisit the periodicity of SGR J1935+2154 bursts with updated sample".Monthly Notices of the Royal Astronomical Society 517.3(2022):3854-3863.
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