通过之前X射线得到的NH:the measured NH of SGR 1935+2154 of 1.6e22 cm^-2 (Israel et al. 2016, MNRAS, 457, 3448).所对应的DM是 530 +/- 200 pc/cc 可能和超新星遗迹成协:potentially associated with SNR G57.2+0.8. 则DM towards G57.2+0.8 of ~290 pc/cc.,比前面的332稍微小一点儿。 流...
FAST揭示磁星快速射电暴的起源! | 快速射电暴是指遥远宇宙中突然出现的短暂而猛烈的无线电波暴发,持续时间只有几毫秒,却能够释放出相当于太阳在一整天内释放的能量。SGR 1935+2154是唯一探测到X射线脉冲辐射、快速射电暴(FRB),继而出现相位稳定射电脉冲发射的磁星,刷新了人们对磁星辐射的认识。
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 ...
We present the results obtained from imaging observations and a search for radio pulsations toward the magnetar SGR J1935+2154 made using the Giant Metrewave Radio Telescope and the Ooty Radio Telescope. We present the high-resolution radio image of the supernova remnant (SNR) G57.2+0.8, which...
HXMT identification of a non-thermal X-ray burst from SGR J1935 2154 and with FRB 200428_2021_C. K. Li Lettershttps://doi.org/10.1038/s41550-021-01302-61 Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China. 2 Department ...
Accompanied by an X-ray burst, the fast radio burst (FRB) FRB 200428 was recently confirmed as originating from the Galactic magnetar soft gamma repeater (SGR) SGR J1935+2154. Just before and after FRB 200428 was detected, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) had...
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