activity
20152022
most citedSupermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. IV. H Time Lags and Implications for Super-Eddington Accretion

226 citations · 519 across the 9 of their papers we have counts for

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15 papers · 1 filter

astro-ph.GA2022★ 35 cited

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…

astro-ph.GA2022★ 38 cited

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…

astro-ph.GA2021★ 40 cited

Reverberation Mapping Measurements of Black Hole Masses and Broad-Line Region Kinematics in Mrk 817 and NGC 7469

Kai-Xing Lu, Jian-Guo Wang, Zhi-Xiang Zhang +7

We present the results from a spectroscopic monitoring campaign to obtain reverberation-mapping measurements and investigate the broad-line region kinematics for active galactic nu…

astro-ph.GA2020★ 30 cited

Broad-line Region of the Quasar PG 2130+099 from a Two-Year Reverberation Mapping Campaign with High Cadence

Chen Hu, Yan-Rong Li, Pu Du +12

As one of the most interesting Seyfert 1 galaxies, PG 2130+099 has been the target of several reverberation mapping (RM) campaigns over the years. However, its measured broad H…

astro-ph.GA2019★ 38 cited

Supermassive black holes with high accretion rates in active galactic nuclei: X. Optical variability characteristics

Kai-Xing Lu, Ying-Ke Huang, Zhi-Xiang Zhang +10

We compiled a sample of 73 active galactic nuclei (AGNs) with reverberation mapping (RM) observations from RM campaigns including our ongoing campaign of monitoring super-Eddington…

astro-ph.GA2019★ 39 cited

Reverberation mapping of narrow-line Seyfert 1 galaxy I Zwicky 1: black hole mass

Ying-Ke Huang, Chen Hu, Yu-Lin Zhao +11

We report results of the first reverberation mapping campaign of I Zwicky 1 during -, which showed unambiguous reverberations of the broad H line emission to the var…