40 citations · 140 across the 16 of their papers we have counts for
8 papers · 1 filter
A New Sample of 100 Intermediate-mass Black Holes Reaching
Wen-Juan Liu, Luis C. Ho, Su Yao +2
We present a systematic search for intermediate-mass black hole (IMBH) active galactic nuclei (AGNs) at using DESI DR1 spectroscopy.We identify 98 broad-line I…
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…
Local Active Galactic Nuclei with Large Broad-Hα Variability Reside in Red Galaxies
Wen-Juan Liu, Paulina Lira, Su Yao +4
Inspired by our serendipitous discovery of six AGNs with varying broad-Halpha fluxes over years out of our searching for intermediate-mass black holes (IMBHs), we conduct a systema…
A population of hypercompact HII regions identified from young HII regions
Aiyuan Yang, James Urquhart, Mark Thompson +8
Context. The derived physical parameters for young HII regions are normally determined assuming the emission region to be optically thin. However, this assumption is unlikely to ho…
X-ray spectral shape variations in changing-look Seyfert galaxy SDSSJ155258+273728
Yanli Ai, Liming Dou, Chenwei Yang +7
We analyze the X-ray, optical, and mid-infrared data of a "changing-look" Seyfert galaxy \sdssj15 at . Over a period of one decade (2009 - 2018), its broad H line…
An Unusual Mid-Infrared Flare in a Type 2 AGN: An Obscured Turning-on AGN or Tidal Disruption Event?
Qian Yang, Yue Shen, Xin Liu +5
We report the discovery of an exceptional MIR flare in a Type 2 AGN, SDSS J165726.81+234528.1, at . This object brightened by 3 mag in the Wide-field Infrared Survey Explo…