论文标题
VLT/uves观察SDSS J2357-0048流出
VLT/UVES Observation of the SDSS J2357-0048 Outflow
论文作者
论文摘要
我们在类星体SDSS J235702.54-004824.0的VLT/UVE频谱中发现了广泛的吸收线（BAL）流出，其中我们确定了四个子组件。我们测量了一个子组件中的离子的列密度（$ v $ = -1600 km s $^{ - 1} $），其中包括O I和Fe II。我们发现该组件的动力学发光度最多为八角星的Eddington发光度的2.4％。这接近有助于AGN反馈所需的金额。我们还研究了C $ v $ = -8700 km s $^{ - 1} $的C IV Mini-BAL的时间变量性，该BAL在2000年和2001年的先前SDSS观察结果中显示了其附加的较浅且较窄的吸收功能，但在2005年和向前的光谱中没有。
We found a broad absorption line (BAL) outflow in the VLT/UVES spectrum of the quasar SDSS J235702.54-004824.0, in which we identified four subcomponents. We measured the column densities of the ions in one of the subcomponents ($v$ = -1600 km s$^{-1}$), which include O I and Fe II. We found the kinetic luminosity of this component to be at most ~2.4% of the quasar's Eddington luminosity. This is near the amount required to contribute to AGN feedback. We also examined the time-variability of a C IV mini-BAL found at $v$ = -8700 km s$^{-1}$, which shows a shallower and narrower absorption feature attached to it in previous SDSS observations from 2000 and 2001, but not in the spectra from 2005 and onwards.
