129 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN84 papers
- University of Science and Technology of ChinaCN81 papers
- National Astronomical ObservatoriesCN53 papers
- Yunnan ObservatoriesCN25 papers
- Shanghai Astronomical ObservatoryCN22 papers
- Anhui Normal UniversityCN20 papers
- University of Chinese Academy of SciencesCN19 papers
- Purple Mountain ObservatoryCN16 papers
- Nanjing Institute of Astronomical Optics & TechnologyCN15 papers
- UNSW SydneyAU15 papers
- Guangzhou UniversityCN12 papers
- Australian Astronomical ObservatoryAU11 papers
5 papers · 2 filters
Seven broad absorption line quasars with excess broad band absorption near 2250 Å
Shaohua Zhang, Jian Ge, Peng Jiang +6
We report the discovery of excess broad band absorption near 2250 A (EBBA) in the spectra of seven broad absorption line (BAL) quasars. By comparing with the statistical results fr…
Unshifted Metastable He I* Mini-Broad Absorption Line System in the Narrow Line Type 1 Quasar SDSS J080248.18551328.9
Tuo Ji, Hongyan Zhou, Peng Jiang +11
We report the identification of an unusual absorption line system in the quasar SDSS J080248.18551328.9 and present a detailed study of the system, incorporating follow-up optic…
Photometric Redshifts in the Hawaii-Hubble Deep Field-North (H-HDF-N)
G. Yang, Y. Q. Xue, B. Luo +11
We derive photometric redshifts (\zp) for sources in the entire ( deg) Hawaii-Hubble Deep Field-North (\hdfn) field with the EAzY code, based on point spread function-…
Outflow and hot dust emission in broad absorption line quasars
Shaohua Zhang, Huiyuan Wang, Tinggui Wang +4
We have investigated a sample of 2099 broad absorption line (BAL) quasars with z=1.7-2.2 built from the Sloan Digital Sky Survey Data Release Seven and the Wide-field Infrared Surv…
Chandra and MMT observations of low-mass black hole active galactic nuclei accreting at low rates in dwarf galaxies
W. Yuan, H. Zhou, L. Dou +3
We report on Chandra X-ray observations of four candidate low-mass black hole (<10^6Msun) active galactic nuclei (AGNs) that have the estimated Eddington ratios among the lowest (~…