activity
20172026
most citedDiscovery of 21 New Changing-look AGNs in Northern Sky

220 citations · 466 across the 31 of their papers we have counts for

collaborators

31 papers

astro-ph.GA2026

Surveying the Universe in 4D: Beating Cosmic Variance with Wide-Field Slitless Spectroscopy from HST, JWST, Euclid, Roman, and Beyond

Andreea Petric, Gaël Noirot, Stacey Alberts +71

We summarize strategies, lessons learned, and future directions from the Space Telescope Science Institute workshop Surveying the Universe in 4D: Beating Cosmic Variance with Wide-…

astro-ph.GA2026

Testing [O II] as a Star Formation Rate Tracer in Quasar Host Galaxies

Xiaotong Feng, Xue-Bing Wu, Yuming Fu +3

The [O II] emission line is a widely used star formation rate (SFR) tracer. However, its application to type I quasars is not straightforward, because the line can be…

astro-ph.GA2026

Far-Infrared Star Formation Rates of Quasar Host Galaxies from Multiwavelength Spectral Energy Distribution Decomposition

Xiaotong Feng, Xue-Bing Wu, Yuming Fu +3

Reliable star formation rates (SFRs) are essential for studying the connection between black hole growth and quasar host galaxies. We study the far-infrared (FIR) SFRs and the host…

astro-ph.GA2026

Radio-detected Lya emitters at 1.88 < z < 3.52: AGN fraction and Lya emission

Sai Zhai, Huub Röttgering, Anniek J. Gloudemans +10

Lya emitters (LAEs) are galaxies with strong Lya emission, tracing early star formation and ionizing radiation. Their connection to active galactic nuclei (AGNs) is key to understa…

astro-ph.GA2026

A Rare Eddington-Limited, Heavily Obscured Low-Mass Active Galactic Nucleus Likely Triggered by a Galaxy Merger

Shouyi Wang, Fan Zou, Chang-Hao Chen +7

We report a detailed analysis of GAMA 376183, a powerful, heavily obscured active galactic nucleus (AGN) hosted by a low-mass galaxy () likely ex…

astro-ph.GA2026

X-ray variability of SDSS J000532.84+200717.4: from a normal state to an X-weak state

Xiaohui Yang, Yanli Ai, Liming Dou +8

We present a multi-epoch study of the extreme X-ray variability of the type~1 quasar SDSS~J000532.84+200717.4 using archival observations from \textit{XMM-Newton}, \textit{Swift}/X…

astro-ph.GA2025

Finding Quasars behind the Galactic Plane. IV. Candidate Selection from Chandra with Random Forest

Xu Zhang, Yanli Ai, Yanxia Zhang +8

Quasar samples remain severely incomplete at low Galactic latitudes because of strong extinction and source confusion. We conduct a systematic search for quasars behind the Galacti…

astro-ph.GA2025★ 2 cited

The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release 10 to 12

Bing Lyu, Xue-Bing Wu, Jun-Jie Jin +9

We present the quasar catalog from Data Releases 10 to 12 of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey, comprising quasars observed betwe…

astro-ph.GA2025

QHSC: The Quasar Candidate Catalog for the Hyper Suprime-Cam Subaru Strategic Program

Rui Zhu, Xue-Bing Wu, Yuxuan Pang +1

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a deep wide-field multi-band imaging survey consisting of three layers (Wide, Deep, and UltraDeep), with the Wide layer…

astro-ph.GA2025

Systematic Analysis of Changing-look AGN Variability Using ZTF Light Curves

Huimei Wang, Xue-Bing Wu, Nanyu Yao +5

Changing-look active galactic nuclei (CLAGNs) are a unique population of AGNs that exhibit the appearance (turn-on) or disappearance (turn-off) of broad emission lines. This study…

astro-ph.GA2025

CURLING -- III. Identifying Candidates of Wide-separation Gravitationally Lensed Quasars from the CatNorth Catalogue

Di Wu, Zizhao He, Nan Li +5

Wide-separation lensed quasars (WSLQs) are a rare subclass of strongly lensed quasars produced by massive galaxy clusters. They provide valuable probes of dark-matter halos and qua…

astro-ph.GA2025

AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere

Yunyi Choi, Yuming Fu, Myungshin Im +16

We present the second catalog of bright quasars from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), focusing on spectroscopically observed quasars in the Northern Hemisphe…

astro-ph.GA2025

Quasar identifications from the slitless spectra: a test from 3D-HST

Yuxuan Pang, Xue-Bing Wu, Yuming Fu +4

Slitless spectroscopy is a traditional method for selecting quasars. In this paper, we develop a procedure for selecting quasars (QSOs) using the 3D-HST G141 slitless spectra. We i…

astro-ph.GA2025

The environments of radio galaxies and quasars in LoTSS data release 2

Tong Pan, Yuming Fu, H. J. A. Rottgering +4

Aims. The orientation-based unification scheme of radio-loud active galactic nuclei (AGNs) asserts that radio galaxies and quasars are essentially the same type of object, but view…

astro-ph.GA2025★ 11 cited

The CatSouth Quasar Candidate Catalog for the Southern Sky and a Unified All-Sky Catalog Based on Gaia DR3

Yuming Fu, Xue-Bing Wu, R. J. Bouwens +12

The Gaia DR3 has provided a large sample of more than 6.6 million quasar candidates with high completeness but low purity. Previous work on the CatNorth quasar candidate catalog ha…

astro-ph.GA2025

Finding Quasars Behind the Galactic Plane: Spectroscopic Identifications of ~1300 New Quasars at |b|<=20 degree from LAMOST DR10

Zhi-Ying Huo, Yuming Fu, Yang Huang +10

Quasars behind the Galactic plane (GPQs) are excellent tracers to probe the chemistry and kinematics of the interstellar/intergalactic medium (ISM/IGM) of the Milky Way along sight…

astro-ph.GA2025

A Pilot Study for the CSST Slitless Spectroscopic Quasar Survey Based on Mock Data

Yuxuan Pang, Xue-Bing Wu, Yuming Fu +4

The wide survey of the Chinese Space Station Telescope (CSST) will observe a large field of 17,500 . The GU, GV, and GI grism observations of CSST will cover a wavele…

astro-ph.GA2025

Highly Variable Quasar Candidates Selected from 4XMM-DR13 with Machine Learning

Heng Wang, Yanli Ai, Yanxia Zhang +6

We present a sample of 12 quasar candidates with highly variable soft X-ray emission from the 4th XMM-newton Serendipitous Source Catalog (4XMM-DR13) using random forest. We obtain…

astro-ph.HE2024

The changing-look AGN SDSS J101152.98+544206.4 is returning to a type I state

Bing Lyu, Xue-Bing Wu, Yuxuan Pang +11

Aims. We reported the discovery that a changing-look AGN SDSS J101152.98+544206.4 (J1011+5442 for short) gradually returns to the type 1 state after a short period between 2014 and…

astro-ph.GA2024★ 1 cited

Galaxies Lighting Up: Discovery of Seventy New Turn-on Changing-look Quasars

Qian Yang, Paul J. Green, Xue-Bing Wu +3

"Changing-look quasars" (CLQs), discovered less than a decade ago, show dramatic, rapid changes in optical/UV continuum and broad line emission. The majority of CLQs have been foun…

astro-ph.HE2024★ 6 cited

Forecasting Supernova Observations with the CSST: I. Photometric Samples

Chengqi Liu, Youhua Xu, Xianmin Meng +8

The China Space Station Telescope (CSST, also known as Xuntian) is a serviceable two-meter-aperture wide-field telescope operating in the same orbit as the China Space Station. The…

astro-ph.GA2024★ 1 cited

H Time Delays of AGNs from the Zwicky Transcient Facility Broadband Photometry

Qinchun Ma, Yuhan Wen, Xue-Bing Wu +2

In our previous work on broadband photometric reverberation mapping (PRM), we proposed the ICCF-Cut process to obtain the time lags of H emission line from two broadband lightcu…

astro-ph.GA2023★ 25 cited

CatNorth: An Improved Gaia DR3 Quasar Candidate Catalog with Pan-STARRS1 and CatWISE

Yuming Fu, Xue-Bing Wu, Yifan Li +17

A complete and pure sample of quasars with accurate redshifts is crucial for quasar studies and cosmology. In this paper, we present CatNorth, an improved Gaia DR3 quasar candidate…

astro-ph.GA2023★ 11 cited

The H broadband photometric reverberation mapping of four Seyfert 1 galaxies

Qinchun Ma, Xue-Bing Wu, Huapeng Gu +2

Broadband photometric reverberation mapping (PRM) have been investigated for AGNs in recent years, but mostly on accretion disk continuum RM. Due to the small fraction of broad emi…