88 citations · 220 across the 5 of their papers we have counts for
5 papers
The LAMOST Survey of Background Quasars in the Vicinity of the Andromeda and Triangulum Galaxies -- II. Results from the Commissioning Observations and the Pilot Surveys
Zhi-Ying Huo, Xiao-Wei Liu, Mao-Sheng Xiang +68
We present new quasars discovered in the vicinity of the Andromeda and Triangulum galaxies with the LAMOST during the 2010 and 2011 observational seasons. Quasar candidates are sel…
The Different Nature in Seyfert 2 Galaxies With and Without Hidden Broad-Line Regions
Yu-Zhong Wu, En-Peng Zhang, Yan-Chun Liang +2
We compile a large sample of 120 Seyfert 2 galaxies (Sy2s) which contains 49 hidden broad-line region (HBLR) Sy2s and 71 non-HBLR Sy2s. From the difference in the power sources bet…
The Unified Model of Active Galactic Nuclei: II. Evolutionary Connection
Jian-Min Wang, En-Peng Zhang
(Abbreviated) We assemble a sample composed of 243 nearby Seyfert galaxies with redshifts to test the unification scheme. The sample contains 94 BLS1s, 44 NLS1s, 36 X-r…
The Unified Model of Active Galactic Nuclei: I. Non-hidden Broad Line Region Seyfert 2 and Narrow Line Seyfert 1 Galaxies
E. -P Zhang, J. -M. Wang
The unified model of Seyfert galaxies suggests that there are hidden broad-line regions (HBLRs) in Seyfert 2 galaxies (S2s). However, there is increasing evidence for the appearanc…
Evolutionary Consequences of Dusty Tori in Active Galactic Nuclei
J. -M. Wang, E. P. Zhang, B. Luo
Deep surveys of {\em Chandra} and {\em HST} (Hubble Space Telescope) show that active galactic nucleus (AGN) populations are changing with hard X-ray luminosities. This arises an i…