H
Hongyan Zhou
Researcher at Polar Research Institute of China
Publications - 100
Citations - 2173
Hongyan Zhou is an academic researcher from Polar Research Institute of China. The author has contributed to research in topics: Galaxy & Quasar. The author has an hindex of 26, co-authored 100 publications receiving 1954 citations. Previous affiliations of Hongyan Zhou include University of the Sciences & Chinese Academy of Sciences.
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Active Galactic Nuclei
TL;DR: In this article, the authors demonstrate that narrow optical Fe II emission lines, both permitted and forbidden, are prevalent in type 1 active galactic nuclei (AGNs) and completely absent in type 2 AGNs, across a wide luminosity range.
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Correlation Analysis of a Large Sample of Narrow-line Seyfert 1 Galaxies: Linking Central Engine and Host Properties
Dawei Xu,S. Komossa,S. Komossa,Hongyan Zhou,Hongyan Zhou,Hongyan Zhou,Honglin Lu,Honglin Lu,Cheng Li,Dirk Grupe,Jing Wang,Weimin Yuan +11 more
TL;DR: In this article, the density of the narrow-line region as a key parameter in Eigenvector 1 space, as important as the Eddington ratio L/L Edd, is established.
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Extreme coronal line emitters: tidal disruption of stars by massive black holes in galactic nuclei?
TL;DR: In this paper, the authors reported the discovery of extremely strong coronal lines from [Fe X] up to [Fe XIV] in a sample of seven galaxies (including two recently reported cases), which they interpret as such signatures.
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Dependence of the optical/UV variability on the emission line properties and Eddington ratio in active galactic nuclei
TL;DR: The dependence of the long-term optical/UV variability on the spectral and the fundamental physical parameters for radio-quiet active galactic nuclei (AGNs) is investigated in this article.
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Optical observations of LIGO source GW 170817 by the Antarctic Survey Telescopes at Dome A, Antarctica
Lei Hu,Lei Hu,Xue-Feng Wu,Xue-Feng Wu,Igor Andreoni,Igor Andreoni,Igor Andreoni,Michael C. B. Ashley,Jeff Cooke,Jeff Cooke,Xiangqun Cui,Fujia Du,Zi-Gao Dai,Bozhong Gu,Yi Hu,Haiping Lu,Xiaoyan Li,Zhengyang Li,En-Si Liang,Liang-Duan Liu,Bin Ma,Zhaohui Shang,Zhaohui Shang,Tianrui Sun,Tianrui Sun,Nicholas B. Suntzeff,Charling Tao,Charling Tao,Syed Uddin,Syed Uddin,Lifan Wang,Lifan Wang,Xiaofeng Wang,Haikun Wen,Di Xiao,Jin Xu,Ji Yang,Shihai Yang,Xiangyan Yuan,Hongyan Zhou,Hui Zhang,Ji-Lin Zhou,Zonghong Zhu,Zonghong Zhu +43 more
TL;DR: In this article, the authors report optical observations of the GW source (GW 170817) in the nearby galaxy NGC 4993 using AST3, and infer from their data that the merging process ejected about 10−2 solar mass of radioactive material at a speed of up to 30% the speed of light.