HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
复制标题
HXMT 识别来自 SGR J1935 2154 和 FRB 200428 的非热 X 射线爆发
DOI：
10.1038/s41550-021-01302-6
复制
发表时间：
2020-05
期刊：
影响因子：
14.1
通讯作者：
Zheng S.
中科院分区：
文献类型：
--
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.;Zhang B.;Xiao S.;Chen Y.;Song L. M.;Xu Y. P.;Liu C. Z.;Jia S. M.;Cao X. L.;Qu J. L.;Zhang S.;Gu Y. D.;Liao J. Y.;Zhao X. F.;Tan Y.;Nie J. Y.;Zhao H. S.;Zheng S.
快速射电暴（FRB）是从宇宙学距离观测到的射电波段的短脉冲。一类模型调用软伽马射线中继器（SGR）或磁星作为FRB的来源2。从一些磁星上观测到了一些无线电脉冲3，但没有发现与任何磁星爆发相关的FRB样事件，包括一次巨大的耀斑4。最近，在银河系磁星SGR J1935+2154的大致方向上探测到了一对相隔29毫秒的FRB样爆发（称为FRB 200428）（参考文献10）。5、6）。在这里，我们报告了在1-250千电子伏的能量带与洞察-HXMT卫星7，我们确定已从SGR J1935+2154发出的非热X射线爆发的检测。爆发显示出两个硬峰，间隔为34毫秒，与FRB 200428中的两个爆发大致一致。双射电峰和X射线峰之间的延迟时间约为8.62 s，与FRB 200428的色散延迟完全一致。因此，我们确定了与FRB 200428相关的非热X射线爆发，其高能对应物是两个硬X射线峰。我们的研究结果表明，非热X射线爆发和FRB 200428共享来自SGR J1935+2154的爆炸事件的相同的物理起源。Insight-HXMT探测到来自银河系磁星SGR J1935+2154的双峰X射线爆发，与几秒钟内从同一物体观察到的两次快速射电爆发（FRB）一致。这种巧合表明了共同的物理起源，并使人们深入了解FRB起源背后的机制。
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. Insight-HXMT detected a double-peaked X-ray burst from Galactic magnetar SGR J1935+2154, consistent with two fast radio bursts (FRBs) observed from the same object within seconds. This coincidence suggests a common physical origin, and gives insight into the mechanism behind the origin of FRBs.
登录
查看更多内容
影响因子：
4.8
作者：
I. Plotnikov;L. Sironi
通讯作者：
I. Plotnikov;L. Sironi
DOI：
10.3847/2041-8213/abc94c
发表时间：
2020-09
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
G. Younes;T. Güver;C. Kouveliotou;M. Baring;Chin-Ping Hu;Z. Wadiasingh;Beste Begiçarslan;T. Enoto-T.-E
通讯作者：
G. Younes;T. Güver;C. Kouveliotou;M. Baring;Chin-Ping Hu;Z. Wadiasingh;Beste Begiçarslan;T. Enoto-T.-E
SGR J1935 2154 2019 年和 2020 年爆发活跃事件的费米/GBM 视图
影响因子：
7.9
作者：
Lin Lin;Gogus Ersin;Roberts Oliver J.;Baring Matthew G.;Kouveliotou Chryssa;Kaneko Yuki;van der Horst Alex;er J.;Younes George
通讯作者：
Younes George
影响因子：
1.1
作者：
A. Rane;D. Lorimer
通讯作者：
A. Rane;D. Lorimer
DOI：
10.3847/2041-8213/aba2cf
发表时间：
2020-05
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
S. Mereghetti;V. Savchenko;C. Ferrigno;D. Götz;M. Rigoselli;A. Tiengo;A. Bazzano;E. Bozzo;
通讯作者：
S. Mereghetti;V. Savchenko;C. Ferrigno;D. Götz;M. Rigoselli;A. Tiengo;A. Bazzano;E. Bozzo;