3 papers
astro-ph.GA2026
The physical mechanism for two rapid changing-look AGNs: SDSS J0225+0030 and SDSS J1723+5504
Shuang-Liang Li, Xinwu Cao, Wei-Min Gu
SDSS J0225+0030 and SDSS J1723+5504 are two turn-on changing-look active galactic nuclei (CL AGNs) with transition timescales shorter than one year. Such short timescales pose a ch…
astro-ph.GA2025
A Sandwich Model for Changing-Look AGNs
Qian-Qi Ma, Wei-Min Gu, Zhen-Yi Cai +4
The spectral variability of changing-look active galactic nuclei (CL-AGNs) occurred on timescales of years to tens of years, posing a significant challenge to the standard thin dis…
astro-ph.GA2024
A surprising excess of radio emission in extremely stable quasars: a unique clue to jet launching?
Wen-Yong Kang, Jun-Xian Wang, Zhen-Yi Cai +6
Quasars are generally divided into jetted radio-loud and non-jetted radio-quiet ones, but why only 10% quasars are radio loud has been puzzling for decades. Other than jet-induced-…