论文标题
X射线光谱来自弱磁化的积聚流
X-ray Spectra From Weakly Magnetized Accretion Flows
论文作者
论文摘要
在本文中，我们扩展了以前的工作，该工作主张在黑洞二进制系统的积聚流中可能存在亚设备磁场的可能性。使用X射线观察在静止状态期间对三个众所周知的A0620-00，XTE J1118+480和V404 CYG进行观察，我们将理论上预期的光谱形状与观察到的数据进行了比较，以验证子准则模型的参数是否可出现。在所有三种情况下，我们发现可以以亚设备流的方式重现X射线观测的光谱形状。这些发现支持这样的想法，即X射线二进制系统的静态状态谱是由弱磁化的吸积流产生的。子设备流对我们当前对喷气发射的理解构成重大挑战，这依赖于强磁场的存在来为射流供电。
In this paper, we expand upon previous work that argued for the possibility of a sub-equipartition magnetic field in the accretion flow of a black hole binary system. Using X-ray observations of the three well-known sources A0620-00, XTE J1118+480 and V404 Cyg during the quiescent state, we compare the theoretically expected spectral shape with the observed data in order to verify that the parameters of the sub-equipartition model are plausible. In all three cases, we find that it is possible to reproduce the spectral shape of the X-ray observations with a sub-equipartition flow. These findings support the idea that the quiescent state spectrum of X-ray binary systems is produced by a weakly-magnetized accretion flow. A sub-equipartition flow would pose a significant challenge to our current understanding of jet-launching, which relies on the presence of a strong magnetic field to power the jet.
