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Title:
Optical Variability of Blazars
Creator:
Mkrtchyan, V. Kh. ; Mickaelian, A. M. ; Abrahamyan, H. V.
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Uncontrolled Keywords:
active galactic nuclei ; variability ; photometry ; optical monitoring
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Abstract:
In this work, we compiled and cross-identified optical variability data for Roma-BZCAT blazars using nine major photometric surveys. Despite the inhomogeneous nature of these datasets, their integration provides a unique opportunity to statistically characterize blazar variability and identify extreme cases for detailed study. Cross-identifications were performed between BZCAT and these nine catalogs, and variability parameters such as amplitude, periodicity, and light-curve morphology were analyzed across different blazar subtypes (BZB, BZG, BZQ, and BZU). Several objects exhibiting extreme variability were identified as candidates for detailed follow-up studies.