23 citations · 64 across the 11 of their papers we have counts for
12 papers
Constraints on the Intranight Optical Variability of Intermediate-Mass Black Hole Candidates
Wenwen Zuo, Hengxiao Guo, Wanling Liu +12
Intermediate-mass black holes (IMBHs) provide a unique regime for studying accretion variability at the low-mass end of the black hole population, yet their intranight optical vari…
The Intermediate-Mass Black Hole Reverberation Mapping Project: Scientific Overview and Sample Characteristics
Hengxiao Guo, Jiancheng Wu, Wenwen Zuo +38
Recent discoveries with the James Webb Space Telescope of massive black holes at high redshift have highlighted fundamental questions about black hole seed formation and the coevol…
Empirical Near-Infrared Spectral Templates from SPHEREx: Disentangling AGN and Host-Galaxy Emission
Wenke Ren, Hengxiao Guo, Zhenya Zheng +9
SPHEREx conducts the first all-sky near-infrared spectral survey over 0.75-5.0 m, spanning the transition from host-galaxy starlight to AGN-heated torus emission and enabling sp…
Radio Activity Across Accretion State Changes in Changing-look AGNs: Insights from FIRST and VLASS over Two Decades
Zhi-Qiang Chen, Wei-Jian Guo, Victoria A. Fawcett +8
Changing-look active galactic nuclei (CL-AGNs) provide a unique opportunity to probe the coupling between accretion flows and relativistic jets in supermassive black holes. We inve…
A Timescale-Resolved Analysis of the Breathing Effect in Quasar Broad Line Regions
C. -Z. Jiang, J. -X. Wang, H. Sou +1
The single-epoch virial method is a fundamental tool for estimating supermassive black hole (SMBH) masses in large samples of AGNs and has been extensively employed in studies of S…
Is quasar variability regulated by the close environment of accretion?
Liang Wu, Jun-Xian Wang, Wen-Ke Ren +1
UV/optical variability in quasars is a well-observed phenomenon, yet its primeval origins remain unclear. This study investigates whether the accretion disk turbulence, which is re…
A surprising excess of radio emission in extremely stable quasars: a unique clue to jet launching?
Wen-Yong Kang, Jun-Xian Wang, Zhen-Yi Cai +6
Quasars are generally divided into jetted radio-loud and non-jetted radio-quiet ones, but why only 10% quasars are radio loud has been puzzling for decades. Other than jet-induced-…
Outflow-related radio emission in radio-quiet quasars
Mai Liao, Junxian Wang, Wenke Ren +1
In this work, we revisit the relationship between [O III] line width (as the indicator of AGN outflow velocity) and the radio emission in RQQs by employing a large sam…
Extreme Variability Quasars in Their Various States. II: Spectral Variation Revealed with Multi-epoch Spectra
Wenke Ren, Junxian Wang, Zhenyi Cai +1
We previously built a sample of 14,012 extremely variable quasars (EVQs) based on SDSS and Pan-STARRS1 photometric observations. In this work we present the spectral fitting to the…
Black holes as the source of dark energy: a stringent test with high-redshift JWST AGNs
Lei Lei, Lei Zu, Guan-Wen Yuan +12
Studies have proposed that there is evidence for cosmological coupling of black holes (BHs) with an index of ; hence, BHs serve as the astrophysical source of dark ener…
Extreme Variability Quasars in Their Various States. I: The sample selection and composite SDSS spectra
Wenke Ren, Junxian Wang, Zhenyi Cai +1
Extremely variable quasars (EVQs) are a population of sources showing large optical photometric variability revealed by time-domain surveys. The physical origin of such extreme var…
More variable quasars have stronger emission lines
Wen-Yong Kang, Jun-Xian Wang, Zhen-Yi Cai +1
The UV/optical variation, likely driven by accretion disc turbulence, is a defining characteristic of type 1 active galactic nuclei (AGNs) and quasars. In this work we investigate…