论文标题
超光X射线源M81 x-6的宽带X射线光谱研究
Broadband X-ray Spectral Study of Ultra-luminous X-ray Source M81 X--6
论文作者
论文摘要
Ultra Luminous X射线源（ULXS）是一类，一类，类似点状的，类似核的X射线源，具有X射线光度，X射线光度从$ \ sim 10^{39} $ 〜ERG S $^{ - 1} $到$ 10^{41} $ 10^{41} $ 〜ERG s $^s $^{-1} $。我们使用同时\ textit {suzaku}和\ textit {nustar}观测研究了ULX M81〜x-6的时间和宽带X射线光谱属性。为了了解源的性质，我们使用\ textit {nustar}观察搜索了来自源的脉动信号。但是，我们未能从源头确定任何强大的脉动信号。或者，具有积分磁中子星连续模型的宽带光谱建模提供了统计上可接受的拟合度，并且推断的光谱参数和X射线颜色与其他脉动ULX一致。因此，我们的分析表明M81〜X-6是另一个候选ULX PULSAR。
Ultra-luminous X-ray sources (ULXs) are a class of extra-galactic, point-like, off-nuclear X-ray sources with X-ray luminosity from $\sim 10^{39}$~erg s$^{-1}$ to $10^{41}$~erg s$^{-1}$. We investigated the temporal and broadband X-ray spectral properties of the ULX M81~X--6 using simultaneous \textit{Suzaku} and \textit{NuSTAR} observations. To understand the nature of the source, we searched for pulsating signals from the source using the \textit{NuSTAR} observation. However, we failed to identify any strong pulsating signals from the source. Alternatively, the broadband spectral modelling with accreting magnetic neutron star continuum model provides a statistically acceptable fit, and the inferred spectral parameters and X-ray colours are consistent with other pulsating ULXs. Thus, our analysis suggests that M81~X--6 is another candidate ULX pulsar.
