V839 Cep – a new quadruple doubly eclipsing system
- Authors: Volkov I.M.1, Volkova A.S.1, Bagaev L.A.1
-
Affiliations:
- Lomonosov Moscow State University
- Issue: Vol 101, No 9 (2024)
- Pages: 819-838
- Section: Articles
- URL: https://rjmseer.com/0004-6299/article/view/647657
- DOI: https://doi.org/10.31857/S0004629924090034
- EDN: https://elibrary.ru/IBHRKX
- ID: 647657
Cite item
Abstract
New high-precision photometric measurements of the eclipsing star V839 Cep (P = 9.96d, VA+B = 9.64m, e = 0.07, B6 V + B7 V), which is the “A” component of the visual double star J21035+5925AB, have established that component “B” is also an eclipsing variable (P = 4.075d, B9 V + G8 V). For component “A”, the apsidal rotation rate was measured to be , which exceeds the theoretical value under the condition of synchronism . The physical parameters of the component stars of the eclipsing pair “A” were obtained: T1 = 13 200 ± 300 K, M1 = (3.7 ± 0.15) M⊙, R1 = (2.57 ± 0.05) R⊙, T2 = 11 900 ± 250 K, M2 = (3.2 ± 0.15) M⊙, R2 = (2.42 ± 0.05) R⊙ and components of the eclipsing pair “B”: T1 = 10 600 ± 200 K, M1 = (2.6 ± 0.2) M⊙, R1 = (1.97 ± 0.05) R⊙, T2 = 5540 ± 50 K, M2 = (0.88 ± 0.05) M⊙, R2 = (0.84 ± 0.05) R⊙. The age of the system is determined to be 70 million years with solar chemical composition. The components of star “A” are pulsating variable stars of the slow β Cephei (SBC) type.
About the authors
I. M. Volkov
Lomonosov Moscow State University
Author for correspondence.
Email: hwp@yandex.ru
Sternberg Astronomical Institute
Russian Federation, MoscowA. S. Volkova
Lomonosov Moscow State University
Email: kravts@yandex.ru
Sternberg Astronomical Institute
Russian Federation, MoscowL. A. Bagaev
Lomonosov Moscow State University
Email: baglev@yandex.ru
Sternberg Astronomical Institute
Russian Federation, MoscowReferences
- P. Müller, Astron. and Astrophys. Suppl. Ser. 33, 275 (1978).
- C. E. Worley and G. G. Douglass, Astron. and Astrophys. Suppl. Ser. 125, 523 (1997).
- P. R. Wožniak, W. T. Vestrand, C. W. Akerlof, R. Balsano, et al., Astron. J. 127(4), 2436 (2004).
- S. A. Otero, P. Wils, G. Hoogeveen, and P. A. Dubovsky, Inform. Bull. Var. Stars 5681, 1 (2006).
- И. М. Волков, Н. С. Волкова, Астрон. журн. 86(2), 158 (2009).
- D. Chochol, A. S. Kravtsova, I. M. Volkov, and L. A. Bagaev, in Observing techniquies, instrumentation and science for metre-class telescopes II, Proc. of the Conference, held in Tatranska Lomnica, Slovakia, September 24–28, 2018.
- I. M. Volkov, L. A. Bagaev, A. S. Kravtsova, and D. Chochol, Contrib. Astron. Observ. Skalnate Pleso 49(2), 434 (2019).
- B. D. Mason, G. L. Wycoff, W. I. Hartkopf, G. G. Douglass, and C. E. Worley, Astron. J. 122(6), 3466 (2001).
- И. М. Волков, С. А. Нароенков, А. С. Кравцова, Астрон. журн. 101(5), ... (2024).
- K. G. Stassun, R. J. Oelkers, M. Paegert, G. Torres, et al., Astron. J. 158(4), 138 (2019).
- И. М. Волков, Н. С. Волкова, Д. Хохол, Астрон. журн. 87(5), 462 (2010).
- И. М. Волков, Н. С. Волкова, И. В. Николенко, Д. Хохол, Астрон. журн. 88(9), 894 (2011).
- И. М. Волков, Д. Хохол, А. С. Кравцова, Астрон. журн. 94(5), 436 (2017).
- М. Волков, А. С. Кравцова, Астрон. журн. 97(3), 190 (2020).
- M. A. Burlak, I. M. Volkov, and N. P. Ikonnikova, Contrib. Astron. Observ. Skalnate Pleso 48(4), 536 (2018).
- V. G. Kornilov, I. M. Volkov, A. I. Zakharov, L. N. Kozyreva, et al., Trudy Gosud. Astron. Inst. Sternberga 63, 4 (1991).
- J. C. Mermilliod, M. Mermilliod, and B. Hauck, Astron. and Astrophys. Suppl. Ser. 124, 349 (1997).
- T. J. Moffett and I. Barnes, T. G., Astron. J. 84, 627 (1979).
- E. M. Leibowitz and H. Mendelson, Publ. Astron. Soc. Pacific 94, 977 (1982).
- I. Volkov, Inform. Bull. Var. Stars 6022, 1 (2012).
- V. Straižys, Multicolor stellar photometry (Tucson: Pachart Pub. House, 1992).
- B. J. Taylor, Astrophys. J. Suppl. 60, 577 (1986).
- G. M. Green, E. F. Schlafly, D. P. Finkbeiner, H.-W. Rix, et al., 810, id. 25 (2015).
- I. M. Volkov, L. A. Bagaev, and D. Chochol, in: The ESO Workshop on the Impact of Binaries on Stellar Evolution, ESO Garching, July 3–7, 2017; edited by G. Beccari and H. M. J. Boffin (Cambridge: Cambridge Univ. Press, 2017).
- И. М. Волков, Х. Ф. Халиуллин, Астрон. журн. 79(9), 827 (2002).
- I. M. Volkov, L. A. Bagaev, and D. Chochol, in Living Together: Planets, Host Stars and Binaries, edited by S. M. Rucinski, G. Torres, and M. Zejda, Astron. Soc. Pacific Conf. Ser. 496, 266 (2015).
- P. J. Flower, 469, 355 (1996).
- D. M. Popper, Ann. Rev. Astron. Astrophys. 18, 115 (1980).
- I. Volkov, Peremennye Zvezdy 42(1), 1 (2022).
- Н. Н. Самусь, Е. В. Казаровец, О. В. Дурлевич, Н. Н. Киреева, Е. Н. Пастухова, Астрон. журн. 94(1), 87 (2017).
- P. De Cat, in Radial and Nonradial Pulsationsn as Probes of Stellar Physics, IAU Colloq. 185; edited by C. Aerts, T. R. Bedding, and J. Christensen-Dalsgaard, Astron. Soc. Pacific Conf. Ser. 259, 196 (2002).
- И. М. Волков, Астрон. журн. 100(4), 319 (2023).
- I. M. Volkov and A. S. Kravtsova, Astron. J. 164(5), id. 194 (2022).
- И. М. Волков, А. С. Кравцова, Астрон. журн. 99(6), 470 (2022).
- I. M. Volkov, Peremennye Zvezdy 44, 42 (2024).
- А. И. Халиуллина, Х. Ф. Халиуллин, Астрон. журн. 61, 393 (1984).
- R. A. Wade and S. M. Rucinski, Astron. and Astrophys. Suppl. Ser. 60, 471 (1985).
- M. K. Abubekerov, N. Yu. Gostev, and A. M. Cherepashchuk, Astron. Rep. 53(8), 722 (2009).
- Л. А. Багаев, И. М. Волков, И. В. Николенко, Астрон. журн. 95(10), 702 (2018).
- И. М. Волков, А. С. Кравцова, Д. Хохол, Астрон. журн. 98(3), 212 (2021).
- K. F. Khaliullin, 299, 668 (1985).
- I. M. Volkov, D. Chochol, J. Grygar, M. Mašek, and J. Juryšek, Contrib. Astron. Observ. Skalnate Pleso 47(1), 29 (2017).
- L. Girardi, A. Bressan, G. Bertelli, and C. Chiosi, Astron. and Astrophys. Suppl. Ser. 141, 371 (2000).
- Х. Ф. Халиуллин, А. И. Халиуллина, Астрон. журн. 66(1), 76 (1989).
- J. Hubscher, Inform. Bull. Var. Stars 6152, 1 (2015).
- D. L. Pollacco, I. Skillen, A. Collier Cameron, D. J. Christian, et al., Publ. Astron. Soc. Pacific 118(848), 1407 (2006).
- A. Claret, Astron. and Astrophys. 424, 919 (2004).
- Н. И. Шакура, Письма в Астрон. журн. 11, 536 (1985).
- T. Levi-Civita, American J. Mathematics 59(2), 225 (1937).
- A. Giménez, in Binary Stars as Critical Tools. Tests in Contemporary Astrophysics, Proc. IAU Symp. № 240, held 22–25 August, 2006 in Prague, Czech Republic; edited by W. I. Hartkopf, E. F. Guinan, and P. Harmanec (Cambridge: Cambridge University Press, 2007), p. 290.
- D. Y. Martynov, Eclipsing Variable Stars, edited by V. P. Tsesevich (New York: John Wiley and Sons, 1973).
- I. M. Volkov and D. Chochol, Contrib. Astron. Observ. Skalnate Pleso 43(3), 419 (2014).
Supplementary files
