论文标题
2019年和2020年爆发主动剧集SGR J1935+2154的Fermi/GBM视图
Fermi/GBM View of the 2019 and 2020 Burst Active Episodes of SGR J1935+2154
论文作者
论文摘要
我们介绍了最新激活SGR J1935+2154的时间和时间集成光谱分析，从2019年10月4日至2020年5月20日使用Fermi/GBM观察到，不包括〜130 s的段，不包括在4月27日的2020年4月27日爆发的爆发。 J1935+2154，以及其他磁铁。长期光谱演化趋势被解释为与爆发过程中磁层平均血浆负荷增加有关。自2014年发现以来，我们还发现SGR J1935+2154的突发活动增加的趋势。最后，我们发现典型的无线电爆发与来自来源的X射线爆发没有关联。这与FRB 200428与SGR J1935+2154 X射线爆发的关联进行了对比，迄今为止，在磁场人群中是独一无二的。
We present temporal and time-integrated spectral analyses of 148 bursts from the latest activation of SGR J1935+2154, observed with Fermi/GBM from October 4th 2019 through May 20th 2020, excluding a ~130 s segment with a very high burst density on April 27th 2020. The 148 bursts presented here, are slightly longer and softer than bursts from earlier activations of SGR J1935+2154, as well as from other magnetars. The long-term spectral evolution trend is interpreted as being associated with an increase in the average plasma loading of the magnetosphere during bursts. We also find a trend of increased burst activity from SGR J1935+2154 since its discovery in 2014. Finally, we find no association of typical radio bursts with X-ray bursts from the source; this contrasts the association of FRB 200428 with an SGR J1935+2154 X-ray burst, to date unique among the magnetar population.
