2 papers
astro-ph.GA2026
Time-Delay Recovery in AGN Reverberation Mapping via Mutual Information
R. A. A. Souza, E. Hatziminaoglou, D. O. Fontinele +3
Active galactic nuclei exhibit complex, nonlinear multiwavelength variability that standard cross-correlation techniques, sensitive only to linear covariance, may fail to capture f…
astro-ph.GA2026
Complexity and Multifractal Variability in Multi-Band Emission of Seyfert AGN
R. A. A. Souza, E. Hatziminaoglou, A. de Pádua Santos +1
Active galactic nuclei (AGNs) exhibit complex variability across multiple wavelengths, reflecting diverse physical processes near their central engines. This work investigates the…