The Farthest Quasar Mini-Broad Absorption Line Outflow from Its Central Source: Very Large Telescope/UVES Observation of SDSS J0242+0049
The Farthest Quasar Mini-Broad Absorption Line Outflow from Its Central Source: Very Large Telescope/UVES Observation of SDSS J0242+0049
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DOI：
10.3847/1538-4357/ac503d
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发表时间：
2022-02
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影响因子：
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通讯作者：
D. Byun;N. Arav;P. Hall
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作者：
D. Byun;N. Arav;P. Hall
我们分析了甚大望远镜/UVES 对类星体 SDSS J024221.87+004912.6 的观测结果。我们确定了四个吸收流出系统：v ≈ −18,000 km s−1 处的 C iv 宽吸收线 (BAL) 和三个较窄的低电离系统，质心速度范围为 –1200 至 –3500 km s−1。这些流出物显示出与 Liu 等人研究的 [O iii] 流出物相似的物理属性。 （2013）。我们发现其中两个系统的能量足以促进活跃的星系核反馈，其中一个系统达到了类星体爱丁顿光度的 5% 以上。我们还发现该系统距类星体 67 kpc 的距离，这是迄今为止检测到的距离其中心源最远的微型 BAL 吸收流出。此外，我们检查了 BAL 的时间变化，发现其速度单调增加，而槽本身随着时间的推移变得更浅。
We analyze Very Large Telescope/UVES observations of the quasar SDSS J024221.87+004912.6. We identify four absorption outflow systems: a C iv broad absorption line (BAL) at v ≈ −18,000 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 [O iii] outflows studied by Liu et al. (2013). We find that two of the systems are energetic enough to contribute to active galactic nucleus 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.