Methods for analyzing the light curves of the non-thermal radiation in active galactic nuclei
We present different methods for analyzing the light curves of active galactic nuclei (AGNs). Based on the example of AGN multiwavelength measurements, features of the following methods are considered: (1) structure functions (SFs)—to search for variability timescales; (2) discrete correlation functions (DCFs)—to search for connections between processes; (3) the Lomb–Scargle (L–S) periodogram—to search for periodicity. We analyze advantages and disadvantages of the methods and discuss their constraints and interpretation.
Authors
- D. O. Kudryavtsev (ORCID: https://orcid.org/0000-0003-2461-1570)
- Yu. V. Sotnikova
- D. A. Morozova (ORCID: https://orcid.org/0000-0002-9407-7804)
- Т. В. Муфахаров (ORCID: https://orcid.org/0000-0001-9984-127X)
- V. V. Vlasyuk
- М. Л. Хабибуллина (ORCID: https://orcid.org/0000-0001-9515-4552)
- А. Г. Михайлов (ORCID: https://orcid.org/0000-0002-0279-0777)
- V. Stolyarov (ORCID: https://orcid.org/0000-0001-8151-828X)
Institutions
- St Petersburg University (RU)
- Kazan Federal University (RU)
- University of Cambridge (GB)
- Special Astrophysical Observatory (RU)
- Development Agency of Serbia (RS)
Publication Details
- Published
- 2024-12-27
- DOI
- https://doi.org/10.26119/vak2024.170
- Primary Topic
- Calibration and Measurement Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Science and Higher Education of the Russian Federation