Moscow, Moscow, Russian Federation
In terms of program execution on finding and selecting candidates for dual supermassive black holes (DSMBHs) collected data long-term multi-frequency monitoring of active galactic nuclei (AGNs) from the databases of the Crimean Astrophysical Observatory and other world databases. Methods for determining the harmonic components in the data series of multi-frequency monitoring, obtaining cross-correlation functions, and determining the parameters of DSMBHs have been developed. The efficiency of the proposed methods, which will be used to determine the power of the GW coming from the selected DSMCHD, is shown on the example of the AGN AO 0235+164.
gravitational waves, AGN, black holes, radio emission
1. Dev L., Gopakumar A., Valtonen M. et al. The Unique Blazar OJ 287 and Its Massive Binary Black Hole Central Engine // Universe, 2019, vol. 5, p.108.
2. Sun Yu-Tao, Liu Jie-Ying, Liu Jin-zhong, Ai Yan-Li, Zhou Ming, Qiao Er-lin. A Research on the Gravitational Wave Radiation of OJ 287 // Chinese Astronomy and Astrophysics, 2011, vol. 35, p.123.
3. Efanov V. A., Moiseev I. G., Nesterov N. S. Obzor vnegalakticheskih radioistochnikov na dline volny 1.35 sm // Izv. Krym. astrofiz. Observatorii, 1979, t. 60, S. 3-13.
4. Volvach A. E., Volvach L. N., Kut’kin A. M., Larionov M. G. et al. Multi-Frequency Studies of the Non-Stationary Radiation of the Blazar 3S 454.3 // Astronomy Reports, 2011, vol. 55, no. 7, pp. 608-615.
5. Vol’vach A. E., Kut’kin A. M., Larionov M. G. et al. A prolonged flare in the blazar 3C 454.3 // Astronomy Reports, 2013, vol. 57, no. 1, pp. 46-51.
6. Richards J. L., Max-Moerbeck W., Pavlidou V. et al. Blazars in the Fermi era : the OVRO 40m telescope monitoring program // ApJS, 2011, vol. 194, pp.29-51.
7. Bonning E., Urry Megan C., Bailyn C. et al. SMARTS optical and infrared monitoring of 12 gamma-ray bright blazars // The Astrophysical Journal, 2012, vol. 756, no. 1, pp. 1-16.
8. Press W. H., Teukolsky S. A., Vetterling W. T., Flannery B. P. // 1992, Numerical Recipes in C (2nd ed.; Cambridge : Cambridge Univ. Press).
9. Wen L. et al. A Systematic Search for Periodicities in RXTE ASM Data // Ap. J. S., 2006, vol. 163, pp. 372-392.
10. Claudi R. U. et al. Asteroseismology of Procyon : Preliminary results from SARG, 2004 // Co. Ast., vol. 145, pp. 53-54.
11. Lanza A. F., Rodono M., Zappala R. A. Fourier analysis of spotted star light curves as a tool to detect stellar differential rotation // A&A, 1993, vol. 269, pp. 351-354.
12. Barning F. J. M. The numerical analysis of light curve of 12 Lacertae // Bull. Astr. Inst. Neth., 1963, vol. 17, no. 1., pp. 22-28.
13. Lomb N. R. Least-squares frequency analysis on unequally spaced data // Astrophys. Sp. Sci., 1976, vol.3 9, pp. 447-462.
14. Scargle J. D. Studies in astronomical time series analysis. 2. Statistical aspects of spectral analysis on une-venly spaced data // Ap. J., 1982, vol. 263, pp. 835-853.
15. Deeming T. J. Fourier analysis with unequally-spaced data // Astrophys. And Space. Sci., 1976, vol. 36, pp.447-462.
16. Edelson R. A., Krolik J. H. The Discrete Correlation Function : A new method for analyzing unevenly samled variability data // Ap. J., 1988, vol. 333, pp. 646-659.
17. Roberts D. H., Lehar J., Dreher J. W. Time series analysis with CLEAN. I. Derivation of a spectrum Astronomical Journal, 1987, vol. 93, pp. 968-989.
18. Carbonell M., Oliver R., Ballester J. L. Power spectra of gapped time series: a comparison of several methods // Astron. and Astrophys, Vol. 264, pp. 350-360.
19. Baliunas S. L., Horne J. H. A prescription for period analysis of unevenly sampled data, 1986 // Ap. J., vol. 302, p. 757-763.
20. Vityazev V. V. Analiz neravnomernyh vremennyh ryadov : ucheb. posobie. SPb. : Izd-vo S.-Peterb. un-ta, 2001. 68 s.
21. Edelson R. A., Krolik J. H. The Discrete Correlation Function : A new method for analyzing unevenly samled variability data, 1988 // Ap. J., vol. 333, pp. 646-659.
22. Rieger F. M. Periodic variability and binary black hole systems in blazars // AIP Conference Proceedings, 2005, vol. 745, pp. 487-492.
23. Rieke G. H., Grasdalen G. L., Kinman T. D., Hintzen P., Wills B. J., Wills D. Photometric and spectroscopic observations of the BL Lacertae object AO 0235+164 // Nature, 1976, vol. 260, pp. 754-759.
24. Cohen R. D., Smith H. E., Junkkarinen V. T., Burbidge E. M. The nature of the BL Lacertae object AO 0235+164 // Astrophysical Journal, vol. 318, pp. 577-584.
25. Vol’vach A. E., Larionov M. G., Vol’vach L. N. et al. Physical Characteristics of the Blazar AO 0235+164 // Astronomy Reports, 2015, vol. 59, no. 2, pp. 145-155.