METHODS FOR ANALYZING THE LIGHT CURVES OF THE NON-THERMAL RADIATION IN ACTIVE GALACTIC NUCLEI
Section: ASTRONOMICAL INSTRUMENTS AND METHODS
Authors:
1.
Special Astrophysical Observatory of the Russian Academy of Sciences
2.
Special Astrophysical Observatory of the Russian Academy of Sciences
Astrophysics Group, Cavendish Laboratory, University of Cambridge
Astrophysics Group, Cavendish Laboratory, University of Cambridge
3.
SAO RAS
4.
Special Astrophysical Observatory of the Russian Academy of Sciences
5.
SAO RAS
6.
Special Astrophysical Observatory of the Russian Academy of Sciences
7.
Special Astrophysical Observatory of the Russian Academy of Sciences
Kazan Federal University
Kazan Federal University
8.
Saint Petersburg State University
Type:
Сonference article
Published:
27.12.2024
Subject area:
UDC 52
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
Language:
English
Keywords:
methods: data analysis, statistical, observational; radiation mechanisms: non-thermal
Abstract (English):
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.
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.
Keywords:
methods: data analysis, statistical, observational; radiation mechanisms: non-thermal
methods: data analysis, statistical, observational; radiation mechanisms: non-thermal
1. Edelson R.A. and Krolik J.H., 1988, ApJ, 333, p. 646
2. Emmanoulopoulos D., McHardy I.M., Papadakis I.E., 2013, MNRAS, 433, 2, p. 443
3. Emmanoulopoulos D., McHardy I.M., Uttley P., 2010, MNRAS, 404, p. 931
4. Hufnagel B.R. and Bregman J.N., 1992, ApJ, 386, p. 473
5. Lomb N.R., 1976, Ap&SS, 39, 2, p. 447
6. Robertson D.R.S., Gallo L.C., Zoghbi A., et al., 2015, MNRAS, 453, 4, p. 3455
7. Scargle J.D., 1982, ApJ, 262, p. 835
8. Simonetti J.H., Cordes J.M., Heeschen D.S., 1985, ApJ, 296, p. 46
9. White R.J., Peterson B.M., 1994, PASP, 106, p. 879.
