论文标题
黑洞候选EXO 1846-031的时序分析与Insight-HXMT监控
Timing analysis of the black hole candidate EXO 1846-031 with Insight-HXMT monitoring
论文作者
论文摘要
我们从2019年爆发期间对黑洞候选EXO 1846-031的详细定时分析介绍了观察结果，并观察到了Insight-HXMT，NICER和MAXI。这种爆发可以大致分为四个不同的状态。这项工作还报道了尼斯（约0.1-6Hz）和Insight-HxMT（约0.7-8Hz）观察到的C型准准周期振荡（QPO）。同时，我们研究了与QPO频率相关的各种物理量。QPO rms频段1-10 keV中的频率关系表明频率大约2 Hz左右，这与GRS 1915+105相似。上述关系的可能假设可能与来源的倾向有关，这可能需要高度倾向来解释它。 QPO频率与QPO RMS之间的关系，硬度，总分数RMS和计数率也在其他瞬态源中发现，这可以表明type-C QPO的起源是非热的。
We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT, NICER and MAXI. This outburst can be classfied roughly into four different states. Type-C quasi-periodic oscillations (QPOs) observed by NICER (about 0.1-6Hz) and Insight-HXMT (about 0.7-8Hz) are also reported in this work. Meanwhile, we study various physical quantities related to QPO frequency.The QPO rms-frequency relationship in three energy band 1-10 keV indicates that there is a turning pointing in frequency around 2 Hz,which is similar to that of GRS 1915+105. A possible hypothesis for the relationship above may be related to the inclination of the source, which may require a high inclination to explain it. The relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources, which can indicate that the origin of type-C QPOs is non-thermal.
