Starspot activity of the red dwarf star V772 Her

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Resumo

The photometric behavior of the spotted primary component of the eclipsing dwarf system V772 Her (G0V + M5V) is considered based on long-term multicolor photoelectric observations. The total photometric effect caused by starspots reaches up to 0.m19. Our simulations showed that the area of the spotted regions can reach up to 13% of the total surface of the star. The spots are 1800 K cooler than the unspotted photosphere and are located at low latitudes.

Sobre autores

I. Alekseev

Crimean Astrophysical Observatory of RAS

Autor responsável pela correspondência
Email: ilya-alekseev@mail.ru
Rússia, Crimea, Nauchny

A. Kozhevnikova

B.N. Yeltsin Ural Federal University

Email: ilya-alekseev@mail.ru
Rússia, Yekaterinburg

V. Kozhevnikov

B.N. Yeltsin Ural Federal University

Email: ilya-alekseev@mail.ru
Rússia, Yekaterinburg

Bibliografia

  1. A.H. Butten, C.L. Morbey, F.C. Fekel, J. Tomkin, Publ. Astron. Soc. Pacif. 91, 304 (1979).
  2. C.D. Scarfe, Inform. Bull. Var. Stars. 1357 (1977).
  3. V. Reglero, M.J. Fernándes-Figueroa, A. Giménes, et al., Astron. and Astrophys. Suppl. Ser. 88, 545 (1991).
  4. F.C. Fekel, Astrophys. J. 246, 879 (1981).
  5. S.A. Drake, T. Simon, J.L. Linsky, Astrophys. J. 91, 1229 (1986).
  6. M. Landini, C.M.F. Brunella, F. Paresce, R.A. Stern, Astrophys. J. 289, 709 (1985).
  7. K.G. Strassmeier, D.S. Hall, L.J. Boyd, and R.M. Genet, Astrophys. J. Suppl. Ser. 69, 141 (1989).
  8. J.R. Bruton, D.S. Hall, L.J. Boyd, et al., Astrophys. Space Sci. 155, 27 (1989).
  9. G.A. Bakos and J. Tremko, Co. Ska. 12, 65 (1984).
  10. G.A. Bakos and J. Tremko, Astrophys. Space Sci. Lib. 98, 67 (1982).
  11. L.J. Boyd, R.M. Genet, D.S. Hall, and W.T. Persinger, Inform. Bull. Var. Stars. 2747 (1985).
  12. V. Piirola, Observ. Astrophys. Lab. Univ. Helsinki. Rep. 6, 151 (1984).
  13. V.P. Kozhevnikov, P.E. Zakharova, Astron. Soc. Pacif. Conf. Ser. 219, 381 (2000).
  14. R.F. Stern and A. Skumanich, Astrophys. J. 267, 232 (1983).
  15. И.Ю. Алексеев, Изв. Крымск. астрофиз. обсерв. 104, 272 (2008).
  16. И.Ю. Алексеев, Астрофизика 57, 275 (2014).
  17. А.В. Кожевникова, И.Ю. Алексеев, Астрон. журн. 92, 818 (2015).
  18. И.Ю. Алексеев, А.В. Кожевникова, Астрон. журн. 94, 240 (2017).
  19. И.Ю. Алексеев, А.В. Кожевникова, Астрон. журн. 95, 421 (2018).
  20. А.В. Кожевникова, И.Ю. Алексеев, В.П. Кожевников, Астрон. журн. 100, 811 (2023).
  21. I.Yu. Alekseev, Solar Phys. 224, 187 (2004).
  22. И.Ю. Алексеев, А.В. Кожевникова, Изв. Крым. Астрофиз. Обсерв. 118 (3), 27 (2022).

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