VLT/UVES observation of the outflow in quasar SDSS J1439-0106
VLT/UVES observation of the outflow in quasar SDSS J1439-0106
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类星体流出的 VLT/UVES 观测 SDSS J1439-0106
DOI：
10.1093/mnras/stac2194
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发表时间：
2022
影响因子：
4.8
通讯作者：
Walker, Andrew
中科院分区：
文献类型：
--
作者：
Byun, Doyee;Arav, Nahum;Walker, Andrew
我们分析了类星体SDSS J143907.5-010616.7的VLT/UVES光谱，该光谱检索自UVES光谱类星体吸收数据库。我们在光谱中确定了两种流出系统：微型宽吸收线（mini- bal）系统和窄吸收线（NAL）系统。我们测量了具有${\rm Fe\, \rm {\small {ii}}}$激发态吸收槽的mini-BAL （$v$ =−1550 km s−1）流出体的离子柱密度。根据${\rm Fe\, \rm {\small {ii}}}$的激发态丰度与基态丰度之比，我们确定了电子数密度$\log {n_e}=3.4^{+0.1}_{-0.1}$，并发现流出的动力学光度为类星体的Eddington光度${\lesssim}0.1\,\hbox{per cent}$，不足以对AGN反馈做出贡献。
We analyse the VLT/UVES spectrum of the quasar SDSS J143907.5-010616.7, retrieved from the UVES Spectral Quasar Absorption Database. We identify two outflow systems in the spectrum: a mini broad absorption line (mini-BAL) system and a narrow absorption line (NAL) system. We measure the ionic column densities of the mini-BAL ($v$ = −1550 km s−1) outflow, which has excited state absorption troughs of ${\rm Fe\, \rm {\small {ii}}}$. We determine that the electron number density $\log {n_e}=3.4^{+0.1}_{-0.1}$, based on the ratios between the excited and ground state abundances of ${\rm Fe\, \rm {\small {ii}}}$, and find the kinetic luminosity of the outflow to be ${\lesssim}0.1\,\hbox{per cent}$ of the quasar’s Eddington luminosity, making it insufficient to contribute to AGN feedback.