Detection of Quasi-periodic Oscillations in SGR 150228213  

作　　者：Run-Chao Chen Can-Min Deng Xiang-Gao Wang Zi-Min Zhou Xing Yang Da-Bin Lin Qi Wang En-Wei Liang 

机构地区：[1]Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University,Nanning 530004,China

出　　处：《Research in Astronomy and Astrophysics》2023年第8期277-289,共13页天文和天体物理学研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(grant Nos.12203013,12273005,and U1938201);China Manned Spaced Project(CMS-CSST-2021-B11);the Guangxi Science Foundation(grant Nos.AD22035171 and 2023GXNSFBA026030)。

摘　　要：The detection of quasi-periodic oscillations(QPOs)in magnetar giant flares(GFs)has brought a new perspective to studies of the mechanism of magnetar bursts.Due to the scarcity of GFs,searching for QPOs in magnetar short bursts is reasonable.Here we report the detection of a narrow QPO at approximately 110 Hz and a wide QPO at approximately 60 Hz in the short magnetar burst SGR 150228213,with a confidence level of 3.35σ.This burst was initially attributed to 4U 0142+61 by Fermi/GBM on location,but we have not detected such QPOs in other bursts from this magnetar.We also found that there was a repeating fast radio burst associated with SGR 150228213 on location.Finally,we discuss the possible origins of SGR 150228213.

关 键 词：methods statistical-(stars:)pulsars individual(4U 0142+61)-X-rays BURSTS 

分 类 号：P172.2[天文地球—天文学]