Investigating the AGN variability timescale -- black hole mass relationship with Gaia, SDSS and ZTF

This article reports on research investigating the relationship between the variability timescale of Active Galactic Nuclei (AGN) and the mass of their central black holes. The study utilizes data from the Gaia, SDSS, and ZTF surveys. The research likely aims to understand the physical processes driving AGN variability and to refine methods for estimating black hole masses.