47 citations
- Guangzhou UniversityCN12 papers
- Guangxi UniversityCN7 papers
- Nanjing UniversityCN4 papers
- Chinese Academy of SciencesCN2 papers
- Guangxi Minzu UniversityCN2 papers
- Shanghai Astronomical ObservatoryCN2 papers
- Guangzhou City Construction CollegeCN1 paper
- Minzu University of ChinaCN1 paper
- Nanjing Foreign Language SchoolCN1 paper
- National Astronomical ObservatoriesCN1 paper
- University of Chinese Academy of SciencesCN1 paper
- University of Science and Technology of ChinaCN1 paper
25 papers
The Study of Circumgalactic Medium with Quasar Pairs
Zhi-Fu Chen, Huan-Chang Qin, Jin-Ting Cai +4
We have collected 10025 foreground-background quasar pairs with projected distances kpc from the large quasar catalog of the SDSS DR16Q. We investigate the properties of…
The detections of inflowing gas from narrow absorption lines at the parsec scale
Zhi-Fu Chen, Minfeng Gu, Zhicheng He +4
Inflows at the dusty torus and smaller scales is crucial to investigate the process of supermassive black hole accretion. However, only few cases of inflowing gas at small scales h…
New Constraint of the Hubble Constant by Proper Motions of Radio Components Observed in AGN Twin-jets
Wei-Jian Lu, Yi-Ping Qin
As the advent of precision cosmology, the Hubble constant () inferred from the Lambda Cold Dark Matter fit to the Cosmic Microwave Background data is increasingly in tension w…
Velocity shift of Mg II and Al III broad absorption lines in quasar SDSS J134444.33+315007.6
Wei-Jian Lu, Ying-Ru Lin
We report, for the first time, a synchronized velocity shift of Mg II and Al III broad absorption lines (BALs) in quasar SDSS J134444.33+315007.6 (hereafter J1344+3150). We found t…
A Kinematic Shift of the C IV Broad Absorption Line in Quasar SDSS J120819.29+035559.4
Wei-Jian Lu, Ying-Ru Lin
We report the kinematic shift of the C IV broad absorption line (BAL) in quasar SDSS J120819.29+035559.4 (hereafter J1208+0355). This quasar shows two BAL systems, including a blue…
Correlations between the Variation of the Ionizing Continuum and Broad Absorption Lines in Individual Quasars
Wei-Jian Lu, Ying-Ru Lin
We discover the significant (significance level of >99%) correlations between the fractional variation of the ionizing continuum and that of the C IV and/or Si IV BALs in each of 2…