6 papers
Rest-frame Ultraviolet Variability of Quasars in the Cosmic Himalayas Overdensity
Jiaqi Lin, Zhenya Zheng, Bin Ma +2
Some high-redshift overdensities show an enhanced incidence of AGNs, suggesting that large-scale environment may influence supermassive black hole fuelling and triggering. Whether…
Empirical Near-Infrared Spectral Templates from SPHEREx: Disentangling AGN and Host-Galaxy Emission
Wenke Ren, Hengxiao Guo, Zhenya Zheng +9
SPHEREx conducts the first all-sky near-infrared spectral survey over 0.75-5.0 m, spanning the transition from host-galaxy starlight to AGN-heated torus emission and enabling sp…
Mock Observations for the CSST Mission: Integral Field Spectrograph--Instrument Simulation
Zhao-Jun Yan, Jun Yin, Lei Hao +25
The Chinese Space Station Survey Telescope (CSST) is a next-generation Stage-IV facility renowned for its wide field of view, high image quality, and multi-band observational capab…
Optimizing Long-term Variability of AGN Light Curves. I. A Case Study with ZTF Observations in the EGS Field
Jiaqi Lin, Zhen-Ya Zheng, Bin Ma +5
Optical variability is a key observational probe for studying the accretion dynamics and central engine physics of Active Galactic Nuclei (AGNs). The quality and completeness of li…
Joint Analysis of Optical, Near-Infrared And Mid-Infrared Variability of 4 Quasars at Redshift < 1
Lin Long, Zhen-ya Zheng, Ning Jiang +8
Amid rapid advances in time-domain astronomy, multi-wavelength (e.g., optical and infrared) time-domain studies of quasars remain scarce. Here we present a systematic analysis of f…
MCI: Multi-Channel Imager on the Chinese Space Station Survey Telescope
Zhen-Ya Zheng, Chun Xu, Xiaohua Liu +37
The Multi-Channel Imager (MCI) is a powerful near-ultraviolet (NUV) and visible imager onboard the Chinese Space Station Survey Telescope (CSST). The MCI provides three imaging cha…