法拉第类星体中心源的小型BAL外流：SDSSJ0242 +0049的VLT/UVES观测
The Farthest Quasar Mini-BAL Outflow from its Central Source: VLT/UVES Observation of SDSSJ0242+0049
摘要：
我们分析了类星体SDSS J024221.87+004912.6的VLT/UVES观测。我们确定了四个吸收流出系统：一个CIV BAL在$v\approx -18,000 \text{ km s}^{-1}$，和三个较窄的低电离系统的质心速度范围从-1200到-3500公里秒$^{-1}$。这些流出物显示出与arXiv：1305.6922研究的[OIII]流出物相似的物理属性。我们发现，两个系统的能量足以促进活动星系核的反馈，其中一个系统达到类星体爱丁顿光度的5%以上。我们还发现，这个系统是在一个距离67千秒差距的类星体，最远的检测到的迷你BAL吸收流出其中央源。此外，我们研究了BAL的时间变异性，发现它的速度单调增加，而槽本身变得越来越浅，随着时间的推移。
英文摘要：
We analyze VLT/UVES observations of the quasar SDSS J024221.87+004912.6. We identify four absorption outflow systems: a CIV BAL at $v\approx -18,000 \text{ km s}^{-1}$, and three narrower low-ionization systems with centroid velocities ranging from -1200 to -3500 km s$^{-1}$. These outflows show similar physical attributes to the [OIII] outflows studied by arXiv:1305.6922. We find that two of the systems are energetic enough to contribute to AGN feedback, with one system reaching above 5% of the quasar's Eddington luminosity. We also find that this system is at a distance of 67 kpc away from the quasar, the farthest detected mini-BAL absorption outflow from its central source to date. In addition, we examine the time variability of the BAL, and find that its velocity monotonically increases, while the trough itself becomes shallower over time.
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