论文标题
更好的观察结果表明，X射线瞬态最大J1348-630是黑洞X射线二进制
NICER observations reveal that the X-ray transient MAXI J1348-630 is a Black Hole X-ray binary
论文作者
论文摘要
我们研究了最近发现的X射线瞬态Maxi J1348-630的爆发演变和时序特性，如使用NICER所观察到的。我们制作了通常用于追踪光谱演化的基本图和功率密度光谱，以研究快速的X射线变异性。 Maxi J1348-630的主要爆发演变与在黑洞瞬变中通常观察到的相似。来源从坚硬的状态通过硬性和软中级状态进化为爆发时的软状态，并在爆发衰减期间以倒车返回坚硬的状态。在爆发结束时，最大J1348-630分别比主要爆发的峰值速度〜1和〜2个数量级的速度均出现了两个回流。在反流期间，来源仅在坚硬的状态下，没有进行任何状态过渡，这与所谓的“失败爆发”相似。在爆发的不同阶段观察到不同类型的准周期振荡（QPO）。根据我们的频谱成绩结果，我们得出结论，Maxi J1348-630是黑洞候选者。
We studied the outburst evolution and timing properties of the recently discovered X-ray transient MAXI J1348-630 as observed with NICER. We produced the fundamental diagrams commonly used to trace the spectral evolution, and power density spectra to study the fast X-ray variability. The main outburst evolution of MAXI J1348-630 is similar to that commonly observed in black hole transients. The source evolved from the hard state, through hard- and soft-intermediate states, into the soft state in the outburst rise, and back to the hard state in reverse during the outburst decay. At the end of the outburst, MAXI J1348-630 underwent two reflares with peak fluxes ~1 and ~2 orders of magnitude fainter than the main outburst, respectively. During the reflares, the source remained in the hard state only, without undergoing any state transitions, which is similar to the so-called "failed outbursts". Different types of quasi-periodic oscillations (QPOs) are observed at different phases of the outburst. Based on our spectral-timing results, we conclude that MAXI J1348-630 is a black hole candidate.
