25 citations · 40 across the 9 of their papers we have counts for
7 papers · 1 filter
First Statistical Detection of MgII-traced Cool Gas Outflows with JWST Towards Cosmic Dawn
Cheqiu Lyu, Haoran Yu, Enci Wang +9
Galactic-scale outflows are a crucial component of galaxy evolution, yet their properties in the early universe remain poorly constrained. We present the first statistical investig…
A Sample of HeII 4686 "Changing-Look" Quasars
Wentao Lu, Jun-Xian Wang
We present the first systematic search for "changing-look" ("CL") behavior in the broad He ii 4686 emission line in quasars, utilizing repeated spectroscopy from the Sloan Digit…
Central Concentration and Escape of Ionizing Photons in Galaxies at the Epoch of Reionization
Cheqiu Lyu, Enci Wang, Junxian Wang +9
Compact, low-mass galaxies with strong nebular emission are considered promising candidates for efficient ionizing photon production and escape. We present a spatially resolved ana…
Prior-Informed AGN-Host Spectral Decomposition Using PyQSOFit
Wenke Ren, Hengxiao Guo, Yue Shen +4
We introduce an improved method for decomposing the emission of active galactic nuclei (AGN) and their host galaxies using templates from principal component analysis (PCA). This a…
Optical Continuum Reverberation Mapping of a Candidate IMBH in a Nearby Seyfert 1 Galaxy
Wenwen Zuo, Hengxiao Guo, Jingbo Sun +25
To investigate the short-term variability and determine the size of the optical continuum emitting region of intermediate-mass black holes (IMBHs), we carried out high-cadence, mul…
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…