5 papers
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…
Searching for dual/lensed quasar candidates with spectroscopic surveys
Xiang Ji, Zhen-Ya Zheng, Ru-Qiu Lin +1
Dual and lensed quasars are valuable astrophysical targets in many aspects. Dual quasars, considered as the precursors of supermassive black hole binaries, can provide crucial insi…
Discovery of Local Analogs to JWST's Little Red Dots
Ruqiu Lin, Zhen-Ya Zheng, Chunyan Jiang +12
Recently, the James Webb Space Telescope (JWST) has revealed a new class of high redshift (high-, ) compact galaxies which are red in the rest-frame optical and blue in the…
Intermediate-Mass Black Holes in Green Pea Galaxies (IMBH-GP) I: a Candidate Sample from LAMOST and SDSS
Ruqiu Lin, Zhen-Ya Zheng, Fang-Ting Yuan +8
The scaling relation of central massive black holes (MBHs) and their host galaxies is well-studied for supermassive BHs (SMBHs, ). However, th…