204 citations · 1.3k across the 39 of their papers we have counts for
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Fast Outflowing Warm Absorbers in Narrow-Line Seyfert 1 Galaxy PG 1001+054 Revealed by HST/COS Spectra
Xiao-Dan Fu, Junfeng Wang, Xiaoyu Xu +1
Narrow-Line Seyfert 1 (NLS1) Galaxies are an important type of active galactic nucleus (AGN), generally expected to be accreting at high Eddington rate. The properties of their out…
Supermassive Black Hole and Broad-line Region in NGC~5548: Results from Five-season Reverberation Mapping
Kai-Xing Lu, Jin-Ming Bai, Jian-Min Wang +9
NGC 5548 is one of the active galactic nuclei (AGN) selected for our long-term spectroscopic monitoring with the Lijiang 2.4~m telescope, aiming at investigating the origin and evo…
Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC~4151 During Outburst Stage: Evidence for Kinematics Evolution of Broad-line Region
Sha-Sha Li, Hai-Cheng Feng, H. T. Liu +6
Changing-look active galactic nucleus NGC~4151, which has attracted a lot of attention, is undergoing the second dramatic outburst stage in its evolutionary history. To investigate…
Accretion Disk Size Measurements of Active Galactic Nuclei Monitored by the Zwicky Transient Facility
Wei-Jian Guo, Yan-Rong Li, Zhi-Xiang Zhang +2
We compile a sample of 92 active galactic nuclei (AGNs) at z<0.75 with photometric light curves from the archival data of the Zwicky Transient Facility and measure the accret…
Spectroastrometry and Reverberation Mapping: the Mass and Geometric Distance of the Supermassive Black Hole in the Quasar 3C 273
Yan-Rong Li, Jian-Min Wang, Yu-Yang Songsheng +4
The quasar 3C 273 has been observed with infrared spectroastrometry (SA) on broad Pa line and optical reverberation mapping (RM) on broad H line. SA delivers information abou…