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| Format: | Preprint |
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2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.10131 |
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| _version_ | 1866910121214345216 |
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| author | Xue, Wang-Chen Tan, Wen-Jun Huang, Yu-Xiang Li, Xiao-Bo Hao, Long-Fei Xiong, Shao-Lin Cai, Ce Wang, Chen-Wei Wang, Yue Lee, Ke-Jia Xu, Heng Zhang, Peng Ge, Ming-Yu Guo, Hao-Xuan Huang, Yue Li, Cheng-Kui Liu, Jia-Cong Ren, Yang-Zhao Xiao, Shuo Xie, Sheng-Lun Yi, Shu-Xu Yu, Zheng-Hang Zhang, Jin-Peng Zhang, Yan-Qiu Zheng, Chao Zheng, Shi-Jie Jia, Shu-Mei Ma, Xiang Wang, Jin Zhao, Hai-Sheng Chen, Yong Liu, Cong-Zhan Xu, Yu-Peng Song, Li-Ming Zhang, Shuang-Nan |
| author_facet | Xue, Wang-Chen Tan, Wen-Jun Huang, Yu-Xiang Li, Xiao-Bo Hao, Long-Fei Xiong, Shao-Lin Cai, Ce Wang, Chen-Wei Wang, Yue Lee, Ke-Jia Xu, Heng Zhang, Peng Ge, Ming-Yu Guo, Hao-Xuan Huang, Yue Li, Cheng-Kui Liu, Jia-Cong Ren, Yang-Zhao Xiao, Shuo Xie, Sheng-Lun Yi, Shu-Xu Yu, Zheng-Hang Zhang, Jin-Peng Zhang, Yan-Qiu Zheng, Chao Zheng, Shi-Jie Jia, Shu-Mei Ma, Xiang Wang, Jin Zhao, Hai-Sheng Chen, Yong Liu, Cong-Zhan Xu, Yu-Peng Song, Li-Ming Zhang, Shuang-Nan |
| contents | SGR J1935+2154 is the unique magnetar so far from which fast radio bursts have been detected. In October 2022, it resumed its burst activity, and we implemented a dedicated target-of-opportunity (ToO) observation on it from Oct. 13th to Nov. 1st, 2022 (about 940 ks in total) with \textit{Insight}-HXMT, while the KM40m radio telescope observed this source for about 1400 hours since Oct. 15th. We searched the LE, ME, and HE data of \textit{Insight}-HXMT in the overlapping observation time windows with the KM40m radio telescope and revealed 60 magnetar X-ray bursts (MXBs), while KM40m only detected 1 radio burst. In particular, we find that there is an X-ray burst on October 21 (denoted as MXB 221021) temporally associated with this radio burst. Interestingly, this association event shows very different morphology from those X-ray and radio association events from this source reported before (e.g., MXB/FRB 200428). Moreover, we systematically analyzed the temporal and spectral properties of the sample of MXBs during this observation and found that % the (radio-associated) MXB 221021 shows some different properties from other MXBs without associated radio bursts. These findings shed new light on the physical mechanisms of X-ray bursts and radio burst emission in magnetars. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_10131 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Joint Observation of SGR J1935+2154 with \textit{Insight}-HXMT and KM40m during the active episode of October 2022 Xue, Wang-Chen Tan, Wen-Jun Huang, Yu-Xiang Li, Xiao-Bo Hao, Long-Fei Xiong, Shao-Lin Cai, Ce Wang, Chen-Wei Wang, Yue Lee, Ke-Jia Xu, Heng Zhang, Peng Ge, Ming-Yu Guo, Hao-Xuan Huang, Yue Li, Cheng-Kui Liu, Jia-Cong Ren, Yang-Zhao Xiao, Shuo Xie, Sheng-Lun Yi, Shu-Xu Yu, Zheng-Hang Zhang, Jin-Peng Zhang, Yan-Qiu Zheng, Chao Zheng, Shi-Jie Jia, Shu-Mei Ma, Xiang Wang, Jin Zhao, Hai-Sheng Chen, Yong Liu, Cong-Zhan Xu, Yu-Peng Song, Li-Ming Zhang, Shuang-Nan High Energy Astrophysical Phenomena SGR J1935+2154 is the unique magnetar so far from which fast radio bursts have been detected. In October 2022, it resumed its burst activity, and we implemented a dedicated target-of-opportunity (ToO) observation on it from Oct. 13th to Nov. 1st, 2022 (about 940 ks in total) with \textit{Insight}-HXMT, while the KM40m radio telescope observed this source for about 1400 hours since Oct. 15th. We searched the LE, ME, and HE data of \textit{Insight}-HXMT in the overlapping observation time windows with the KM40m radio telescope and revealed 60 magnetar X-ray bursts (MXBs), while KM40m only detected 1 radio burst. In particular, we find that there is an X-ray burst on October 21 (denoted as MXB 221021) temporally associated with this radio burst. Interestingly, this association event shows very different morphology from those X-ray and radio association events from this source reported before (e.g., MXB/FRB 200428). Moreover, we systematically analyzed the temporal and spectral properties of the sample of MXBs during this observation and found that % the (radio-associated) MXB 221021 shows some different properties from other MXBs without associated radio bursts. These findings shed new light on the physical mechanisms of X-ray bursts and radio burst emission in magnetars. |
| title | Joint Observation of SGR J1935+2154 with \textit{Insight}-HXMT and KM40m during the active episode of October 2022 |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2604.10131 |