348 citations · 384 across the 8 of their papers we have counts for
5 papers · 1 filter
Testing Colour-magnitude Pattern as A Method in the Search for Changing-Look AGNs
Li-tao Zhu, Zhongxiang Wang, P. U. Devanand +6
We develop a simple method to search for changing-look (CL) active galactic nucleus (AGN) candidates, and conduct a test run. In this method, optical variations of AGNs are monitor…
Four Changing-Look Active Galactic Nuclei Found From Optical Variations
Litao Zhu, Jie Li, Zhongxiang Wang +1
We report the finding of four changing-look (CL) active galactic nuclei (AGN). We selected these sources due to their potential as interesting targets when considering their relati…
Spin transfer from dark matter to gas during halo formation
Jie Li, Danail Obreschkow, Chris Power +1
In the protogalactic density field, diffuse gas and collision-less cold dark matter (DM) are often assumed sufficiently mixed that both components experience identical tidal torque…
Three Cases of Optical Periodic Modulation in Active Galactic Nuclei
Jie Li, Zhongxiang Wang, Dong Zheng
We report on the case of optical periodic modulation discovered in two Active Galactic Nuclei (AGN) and one candidate AGN. Analyzing the archival optical data obtained from large t…
Angular momentum-related probe of cold gas deficiencies
Jie Li, Danail Obreschkow, Claudia Lagos +3
Recent studies of neutral atomic hydrogen (HI) in nearby galaxies found that all field disk galaxies are HI saturated, in that they carry roughly as much HI as permitted before thi…