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Singular Spectrum Analysis of Fermi-LAT Blazar Light Curves: A Systematic Search for Periodicity and Trends in the Time Domain
Alba Rico, A. Domínguez, P. Peñil +4
A majority of blazars exhibit variable emission across the entire electromagnetic spectrum, observed over various time scales. In particular, discernible periodic patterns are dete…
Decade-long periodicity study of 2FHL blazars with historical optical data
Sagar Adhikari, Pablo Peñil, Alberto Domínguez +3
In our recent investigation, we utilized a century's worth of archival optical data to search for a decade-long periodicity from the blazar PG 1553+113, finding a hint of a 22-yr p…
Multiwavelength Variability Analysis of Fermi-LAT Blazars
P. Peñil, J. Otero-Santos, M. Ajello +6
Blazars present highly variable -ray emission. This variability, which can range from a few minutes to several years, is also observed at other wavelengths across the entire ele…