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Rapid Spectral Variability of T Corona Borealis

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Abstract

The results of the analysis of photometric and spectral monitorings of the recurrent symbiotic nova T CrB, carried out using the low-resolution spectrograph TDS of the 2.5-m telescope and the CCD photometer of the 0.6-m telescope of the CMO SAI, are presented. It is shown that the fluxes in the emission lines H\(\alpha\), H\(\beta\), He I \(\lambda\) 5876 change by 6–16\(\%\), and in the emission line He II \(\lambda\) 4686 by about 60\(\%\) on timescales of 20–60 minutes. The line flux curves on August 25, 2020 are similar to the \(B\) light curve of T CrB, but with a time delay of up to 600 s for different lines. The observed spectrum is approximated by the radiation of the system components with the following parameters: a red giant of spectral type M4 III, a nebula with \(T_{e}=10^{4}\) K and emission measure of \(4\times 10^{58}\) cm\({}^{-3}\), and the accretion disk with \(R_{1}=0.003R_{\odot}\), \(R_{\textrm{out}}\approx 1R_{\odot}\) (at inclination \(i=57^{\circ}\)).

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REFERENCES

  1. L. N. Berdnikov, A. A. Belinskii, N. I. Shatskii, et al., Astronomy Reports 64 (4), 310 (2020).

    Article  ADS  Google Scholar 

  2. L. Berman, Publ. Astron. Soc. Pacific 44 (261), 318 (1932).

    Article  ADS  Google Scholar 

  3. A. Bianchini and J. Middleditch, Inform. Bull. Var. Stars 1151 (1967).

  4. A. A. Boyarchuk, Sov. Astron. 44, 1016 (1967).

    Google Scholar 

  5. A. Bruch, Inform. Bull. Var. Stars 1805 (1980).

  6. D. Dobrzycka, S. J. Kenyon, and A. A. E. Milone, Astron. J. 111, 114 (1996).

    Google Scholar 

  7. A. A. Henden, M. Templeton, D. Terrell, et al., VizieR Online Data Catalog II/336 (2016).

  8. P. A. Ianna, Astrophys. J. 139, 780 (1964).

    Article  ADS  Google Scholar 

  9. G. M. Lawrence, J. P. Ostriker, and J. E. Hesser, Astrophys. J. 148, L161 (1967).

    Article  ADS  Google Scholar 

  10. H. C. Lines, R. D. Lines, and T. G. McFaul, Astron. J. 95, 1505 (1988).

    Article  ADS  Google Scholar 

  11. G. J. M. Luna, K. Mukai, J. L. Sokoloski, et al., Astron. and Astrophys. 619, id. A61 (2018).

  12. N. A. Maslennikova, A. A. Tatarnikova, A. M. Tatarnikov, et al., Astronomy Letters 48 (1), 38 (2022).

    Article  ADS  Google Scholar 

  13. U. Munari, S. Dallaporta, and G. Cherini, New Astronomy 47, 7 (2016).

    Article  ADS  Google Scholar 

  14. J. B. Oke, Astron. J. 99, 1621 (1990).

    Article  ADS  Google Scholar 

  15. V. L. Oknyanskii, Astronomy Letters 19 (6), 416 (1993).

    ADS  Google Scholar 

  16. B. M. Peterson, I. Wanders, K. Horne, et al., Publ. Astron. Soc. Pacific 110 (748), 660 (1998).

    Article  ADS  Google Scholar 

  17. A. J. Pickles, Publ. Astron. Soc. Pacific 110 (749), 863 (1998).

    Article  ADS  Google Scholar 

  18. S. A. Potanin, A. A. Belinski, A. V. Dodin, et al., Astronomy Letters 46 (12), 836 (2020).

    Article  ADS  Google Scholar 

  19. M. Revnivtsev, R. Burenin, I. Bikmaev, et al., Astron. and Astrophys. 513, id. A63 (2010).

  20. R. F. Sanford, Astrophys. J. 109, 81 (1949).

    Article  ADS  Google Scholar 

  21. B. E. Schaefer, Bull. Amer. Astron. Soc. 51 (4), id. 122.07 (2019).

  22. P. L. Selvelli, A. Cassatella, and R. Gilmozzi, Astrophys. J. 393, 289 (1992).

    Article  ADS  Google Scholar 

  23. T. Shahbaz, M. Somers, B. Yudin, and T. Naylor, Monthly Notices Royal Astron. Soc. 288 (4), 1027 (1997).

    Article  ADS  Google Scholar 

  24. J. L. Sokoloski, ASP Conf. Ser. 30, 202 (2003).

  25. J. L. Sokoloski, L. Bildsten, and W. C. G. Ho, Monthly Notices Royal Astron. Soc. 326, 553 (2001).

    Article  ADS  Google Scholar 

  26. V. Stanishev, R. Zamanov, N. Tomov, and P. Marziani, Astron. and Astrophys. 415 (2), 609 (2004).

    Article  ADS  Google Scholar 

  27. A. A. Tatarnikova, A. M. Tatarnikov, V. F. Esipov, and E. A. Kolotilov, Astronomy Letters 35 (3), 182 (2009).

    Article  ADS  Google Scholar 

  28. A. A. Tatarnikova, A. M. Tatarnikov, and V. I. Shenavrin, Proc. IAU Symp. 281, 203 (2013).

  29. T. Tomov, D. Kolev, U. Munari, and A. Antov, Monthly Notices of the Royal Astron. Soc. 278 (2), 542 (1996).

    Google Scholar 

  30. T. Tomov, D. Kolev, U. Munari, et al., Astron. and Astrophys. 300, 769 (1995).

    ADS  Google Scholar 

  31. R. Tylenda, Acta Astronomica 27, 235 (1977).

    ADS  Google Scholar 

  32. A. Vallenari et al. (Gaia Collab.), arXiv e-prints astro/ph:22208.00211 (2022).

  33. A. R. Walker, Monthly Notices Royal Astron. Soc. 179 (4), 587 (1977).

    Article  ADS  Google Scholar 

  34. M. F. Walker, Proc. IAU Symp. 3, 46 (1957).

  35. R. Zamanov, M. F. Bode, V. Stanishev, and J. Martí, Monthly Notices Royal Astron. Soc. 350 (4), 1477 (2004).

    Article  ADS  Google Scholar 

  36. R. Zamanov, A. Gomboc, M. F. Bode, et al., Publ. Astron. Soc. Pacific 117 (829), 268 (2005).

    Article  ADS  Google Scholar 

  37. R. K. Zamanov and A. Bruch, Astron. and Astrophys. 338, 988 (1998).

    ADS  Google Scholar 

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ACKNOWLEDGMENTS

The authors are grateful to N.P. Ikonnikova (SAI) for photometric monitoring of T CrB. The authors are grateful to the referees for their careful reading of the article and valuable comments. This work was supported by the Development Program of Lomonosov Moscow State University (Scientific and Educational School ‘‘Fundamental and Applied Space Research’’). N. Maslennikova thanks the Foundation for the Development of Theoretical Physics and Mathematics ‘‘BASIS’’ (project No. 22-2-10-21-1) for support.

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Authors and Affiliations

  1. Sternberg Astronomical Institute, Lomonosov Moscow State University, 119234, Moscow, Russia

    N. A. Maslennikova, A. M. Tatarnikov & A. A. Tatarnikova

  2. Faculty of Physics Lomonosov Moscow State University, 119191, Moscow, Russia

    N. A. Maslennikova & A. M. Tatarnikov

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  1. N. A. Maslennikova
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  2. A. M. Tatarnikov
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  3. A. A. Tatarnikova
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Correspondence to N. A. Maslennikova.

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Maslennikova, N.A., Tatarnikov, A.M. & Tatarnikova, A.A. Rapid Spectral Variability of T Corona Borealis. Astrophys. Bull. 78, 325–332 (2023). https://doi.org/10.1134/S1990341323600187

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