- PII
- S3034517025120065-1
- DOI
- 10.7868/S3034517025120065
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 51 / Issue number 12
- Pages
- 1121-1131
- Abstract
- The results of the analysis of photometric observations of the long-period SU UMa-type dwarf nova MASTER OT J212624.16+253827.2 are presented based on the data of ZTF, ATLAS, GAIA, ASAS-SN obtained in 2018–2023 (HJD 245 6772–246 0568) and the Crimean Astrophysical Observatory obtained in 2023–2024 (HJD 246 0199–246 0576) at different stages of outburst activity. We found that this observation interval is notable for variations in the dwarf nova supercycle and cycle, equal to 146–184 days and 12–37 days, respectively. For the first time, we determined the orbital period equal to 0.0865044(2) days, which dominated in the 2018–2023 (HJD 245 8228–245 8836) quiescence and the period of negative superhumps 0.083–0.084 days, which dominated in 2023–2024 (HJD 246 0199–246 0576) quiescence. The estimated mass ratio of the system components is 0.21(2).
- Keywords
- катаклизмические переменные карликовые новые звезды типа SU UMa MASTER ОТ J212624.16+253827.2
- Date of publication
- 10.03.2026
- Year of publication
- 2026
- Number of purchasers
- 0
- Views
- 20
References
- 1. Y. Osaki, Publ. Astron. Soc. Pacific 108, 39 (1996).
- 2. B. Warner, Astrophys. Space Sci. 226(2), 187 (1995).
- 3. T. Като, A. Imada, M. Uemura, D. Nogami, et al., Publ. Astron. Soc. Japan 61(sp2), S395 (2009).
- 4. Y. Osaki and T. Kato, Publ. Astron. Soc. Japan 65(5), id. 95 (2013).
- 5. A.V. Tutukov, A.V. Fedorova, E.V. Ergma, and L.R. Yungelson, Soviet Astron. Letters 11(2), 52 (1985).
- 6. C. Knigge, I. Baraffe, and J. Patterson, Astrophys. J. Suppl. 194(2), id. 28 (2011).
- 7. Ph. Podsiadlowski, Z. Han, and S. Rappaport, Monthly Not. Roy. Astron. Soc. 340(4), 1214 (2003).
- 8. C.A. Whyte and P.P. Eggleton, Monthly Not. Roy. Astron. Soc. 190, 801 (1980).
- 9. N.A. Katysheva and E.P. Pavlenko, Astrophysics 46(1), 114 (2003).
- 10. E.P. Pavlenko, T. Kato, O.I. Antonyuk, T. Ohshima, et al., Publ. Astron. Soc. Japan 66(6), id. 111 (2014).
- 11. T. Kato, F.-J. Hambsch, P.A. Dubovsky, I. Kudzej, et al., Publ. Astron. Soc. Japan 67(6), id. 105 (2015).
- 12. D. Denisenko, V. Lipunov, E. Gorbovskoy, P. Balanutsa, et al., Astron. Telegram № 5111 (2013).
- 13. V.M. Lipunov, P.V. Balanutsa, E.P. Pavlenko, A.A. Sosnovskij, et al., Astron. Rep. 68(12), 1364 (2024).
- 14. T. Kato, F.-J. Hambsch, H. Maehara, G. Masi, et al., Publ. Astron. Soc. Japan 66(2), id. 30 (2014).
- 15. T. Kato, K. Isogai, Y. Wakamatsu, F.-J. Hambsch, et al., Publ. Astron. Soc. Japan 72(1), id. 14 (2020).
- 16. C. Knigge, Monthly Not. Roy. Astron. Soc. 373(2), 484 (2006).
- 17. J. Larwood, Monthly Not. Roy. Astron. Soc. 299(2), L32 (1998).
- 18. Y. Osaki and T. Kato, Publ. Astron. Soc. Japan 65(3), id. 50 (2013).
- 19. E. Pavlenko, S. Shugarov, T. Kato, O. Antonyuk, et al., Contrib. Astron. Observ. Skalnate Pleso 54(2), 117 (2024).
- 20. Y. Osaki, Publ. Astron. Soc. Japan 47, L25 (1995).
- 21. J.K. Сannizzo, A.W. Shafter, and J.C. Wheeler, 333, 227 (1988).
- 22. J. Smak, Acta Astronomica 35, 357 (1985).
- 23. T. Kato, R. Ishioka, and M. Uemura, Publ. Astron. Soc. Japan 54(6), 1033 (2002).
- 24. E.P. Pavlenko, D.A. Samsonov, O.I. Antonyuk, M.V. Andreev, A.V. Baklanov, and A.A. Sosnovskij, Astrophysics 55(4), 494 (2012).
- 25. E. Pavlenko, N. Pit, and T. Kato, Contrib. Astron. Observ. Skalnate Pleso 54(1), 20 (2024).
- 26. A. Sosnovskij, E. Pavlenko, N. Pit, and K. Antonyuk, Inform. Bull. Var. Stars № 6216, 1 (2017).
- 27. E.P. Pavlenko, A.A. Sosnovski, K.A. Antonyuk, O.I. Antonyuk, N.V. Pit, G.I. Kokhirova, F.J. Rakhmatullaeva, and A.V. Baklanov, Astrophysics 64(3), 293 (2021).
- 28. S.V. Antipin and E.P. Pavlenko, Astron. and Astrophys. 391, 565 (2002).
- 29. E. Pavlenko, O. Antoniuk, K. Antoniuk, M. Andreev, D. Samsonov, A. Baklanov, and A. Golovin, 17th European White Dwarf Workshop. AIP Conf. Proc. 1273(1), 320 (2010).
- 30. A.S. Sklyanov, E.P. Pavlenko, K.A. Antonyuk, N.V. Pit, et al., Astrophysics 63(2), 200 (2020).
- 31. R.F. Stellingwerf, 224, 953 (1978).
- 32. Ya. Pelt, Frequency analysis of astronomical time series (Tallin: Valgus, 1980).
- 33. T. Kato, arXiv:2201.02945 [astro-ph.SR] (2022).
- 34. E.P. Pavlenko, A.A. Sosnovskij, K.A. Antonyuk, E.R. Lyumanov, N.V. Pit, and O.I. Antoniuk, Astrophysics 63(4), 491 (2020).
- 35. A.A. Sosnovskij and E.P. Pavlenko, Astrophys. Bull. 80, 173 (2025).
- 36. M.M. Montgomery and E.L. Martin, 722(2), 989 (2010).
