4 papers
Lagrangian space remapping and the angular momentum reconstruction from cosmic structures
Sijia Li, Ming-Jie Sheng, Haikun Li +1
Large scale structures provide valuable information of the primordial perturbations that encode the secrets of the origin of the Universe. It is an essential step to map between ob…
Spin speed correlations and the evolution of galaxy-halo systems
Ming-Jie Sheng, Lin Zhu, Hao-Ran Yu +4
Galaxy angular momenta (spins) contain valuable cosmological information, complementing their positions and velocities. The baryonic spin direction of galaxies has been probed as a…
Faint AGNs Favor Unexpectedly Long Inter-band Time Lags
Ting Li, Mouyuan Sun, Xiaoyu Xu +12
Inconsistent conclusions are obtained from recent active galactic nuclei (AGNs) accretion disk inter-band time-lag measurements. While some works show that the measured time lags a…
Modeling Quasar UV/Optical Variability with the Corona-heated Accretion-disk Reprocessing (CHAR) Model
Mouyuan Sun, Yongquan Xue, Hengxiao Guo +7
The rest-frame UV/optical variability of the quasars in the Sloan Digital Sky Survey (SDSS) Stripe 82 is used to test the Corona-Heated Accretion-disk Reprocessing (CHAR) model of…