论文标题
部分可观测时空混沌系统的无模型预测
VLT MUSE observations of the bubble nebula around NGC 1313 X-2 and evidence for additional photoionization
论文作者
论文摘要
NGC 1313 X-2周围的气泡星云被认为是由中央超X射线源（ULX）的高速风能提供的，这是由于超临界积聚的。通过对星云的多单元光谱探索器（MUSE）观察，我们发现在空间上与恒星簇和中央X射线源相吻合的位置上的OIII发射增强，这表明，除了冲击电离外，光电报在为Nebula供电方面发挥了重要作用。 ULX的X射线光度和星云区域中巨大的恒星数量可以解释使用映射V得出所需的电离光度，这也证实了纯冲击无法解释观察到的发射线比。
The bubble nebula surrounding NGC 1313 X-2 is believed to be powered by high velocity winds from the central ultraluminous X-ray source (ULX) as a result of supercritical accretion. With the Multi-Unit Spectroscopic Explorer (MUSE) observation of the nebula, we find enhanced OIII emission at locations spatially coincident with clusters of stars and the central X-ray source, suggesting that photoionization in addition to shock-ionization plays an important role in powering the nebula. The X-ray luminosity of the ULX and the number of massive stars in the nebula region can account for the required ionizing luminosity derived with MAPPINGS V, which also confirms that pure shocks cannot explain the observed emission line ratios.
