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astro-ph.GA2026
Reincarnations of massive stars in active galactic nucleus discs
Jing-Tong Xing, Tong Liu, Jiao-Zhen She
The origin and evolution of massive stars in active galactic nucleus (AGN) discs remain uncertain. We develop a semi-analytical model that follows the evolution of an embedded core…
astro-ph.GA2026
Migration Traps as Variability Attractors. I. Optical/UV Signatures of Embedded Stellar-Mass Black Holes in Active Galactic Nucleus Disks
Jing-Tong Xing, Tong Liu, Mouyuan Sun +5
We investigate whether embedded stellar-mass black holes (sBHs) in active galactic nucleus (AGN) disks can leave observable optical/UV variability signatures through migration-trap…
astro-ph.GA2025
Possible quasi-periodic optical oscillations of ZTF blazars
Na Wang, Guowei Ren, Shun Zhang +3
Based on the Zwicky Transient Facility (ZTF), we selected 10 blazars as our sample sources. Among these, we found four blazars (J 0923.5+4125, J 1221.3+3010, J 1503.5+4759, and J 1…