HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
文献类型：期刊论文
| 作者 | Li, C. K.; Lin, L.; Xiong, S. L.; Ge, M. Y.; Li, X. B.; Li, T. P.; Lu, F. J.; Zhang, S. N.; Tuo, Y. L.; Nang, Y. |
| 刊名 | Nature Astronomy
 |
| 出版日期 | 2021 |
| ISSN号 | 2397-3366 |
| DOI | 10.1038/s41550-021-01302-6 |
| 英文摘要 | Fast radio bursts (FRBs) are short pulses observed in the radio band from cosmological distances1. One class of models invokes soft gamma-ray repeaters (SGRs), or magnetars, as the sources of FRBs2. Some radio pulses have been observed from some magnetars3, but no FRB-like events have been detected in association with any magnetar burst, including one giant flare4. Recently, a pair of FRB-like bursts (termed FRB 200428) separated by 29 milliseconds were detected from the general direction of the Galactic magnetar SGR J1935+2154 (refs. 5,6). Here, we report the detection of a non-thermal X-ray burst in the 1-250 keV energy band with the Insight-HXMT satellite7, which we identify as having been emitted from SGR J1935+2154. The burst showed two hard peaks with a separation of 34 milliseconds, broadly consistent with that of the two bursts in FRB 200428. The delay time between the double radio peak and the X-ray peaks is about 8.62 s, fully consistent with the dispersion delay of FRB 200428. We thus identify the non-thermal X-ray burst to be associated with FRB 200428, whose high-energy counterpart is the two hard X-ray peaks. Our results suggest that the non-thermal X-ray burst and FRB 200428 share the same physical origin in an explosive event from SGR J1935+2154. |
| WOS记录号 | WOS:000619391500003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/289777]  |
| 专题 | 高能物理研究所_粒子天体物理中心 硬X射线调制望远镜卫星 |
| 推荐引用方式 GB/T 7714 | Li, C. K.,Lin, L.,Xiong, S. L.,et al. HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428[J]. Nature Astronomy,2021. |
| APA | Li, C. K..,Lin, L..,Xiong, S. L..,Ge, M. Y..,Li, X. B..,...&Zhuang, R. L..(2021).HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428.Nature Astronomy. |
| MLA | Li, C. K.,et al."HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428".Nature Astronomy (2021). |
入库方式： OAI收割
来源：高能物理研究所
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