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Nearby low-mass triple system GJ 795

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Abstract

We report the results of our optical speckle interferometric observations of the nearby triple system GJ 795 performed with the 6 m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences with diffraction-limited angular resolution. The three components of the system were optically resolved for the first time. Position measurements allowed us to determine the elements of the inner orbit of the triple system. We use the measured magnitude differences to estimate the absolute magnitudes and spectral types of the components of the triple: M Aa V =7.31±0.08, M Ab V =8.66±0.10, M B V =8.42±0.10, Sp Aa≈K5, Sp Ab≈K9, Sp B ≈K8. The total mass of the system is equal to ΣM AB =1.69±0.27M ⊙. We show GJ795 to be a hierarchical triple system which satisfies the empirical stability criteria.

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References

  1. J. Pflamm-Altenburg and P. Kroupa, Monthly Notices Roy. Astronom. Soc. (2006, in press).

  2. F. C. Fekel, Astrophys. J. 246, 879 (1981).

    Article  ADS  Google Scholar 

  3. V. Szebehely, K. Zare, Astronom. and Astrophys. 58, 145 (1977).

    ADS  Google Scholar 

  4. A. Tokovinin, O. Kiyaeva, M. Sterzik, et al., Astronom. and Astrophys. 441, 695 (2005).

    Article  ADS  Google Scholar 

  5. P. P. Eggleton and L. G. Kiseleva, Astrophys. J. 455, 640 (1995).

    Article  ADS  Google Scholar 

  6. V. G. Golubev, Doklady Akad. Nauk SSSR 12, 259 (1967).

    Google Scholar 

  7. V. G. Golubev, Doklady Acad. Nauk SSSR 13, 373 (1968).

    MATH  Google Scholar 

  8. R. S. Harrington, Celest. Mech. 6, 322 (1972).

    Article  ADS  Google Scholar 

  9. R. S. Harrington, Astronom. J. 82, 753 (1977).

    Article  ADS  Google Scholar 

  10. R. Mardling and S. Aarseth, in Proceedings of the International Meeting on the dynamics of small bodies in the Solar system, a major key to Solar system studies, Ed. by B. A. Steves and A. E. Roy (Kluwer, Dordrecht, 1999), p. 385.

    Google Scholar 

  11. I. I. Balega, Yu. Yu. Balega, K.-H. Hofmann, et al., Astronomy Letters 25, 797 (1999).

    ADS  Google Scholar 

  12. V. V. Orlov and R. Ya. Zhuchkov, Astronom. Zh. 82,3, 231 (2005).

    Google Scholar 

  13. G. P. Kuiper, Publ. Astronom. Soc. Pacific 46, 285 (1934).

    Article  ADS  Google Scholar 

  14. A. Duquennoy, Astronom. and Astrophys. 178, 114 (1987).

    ADS  Google Scholar 

  15. A. F. Maximov, Y. Y. Balega, U. Beckman, et al., Bull. Spec. Astrophys. Obs. 56, 102 (2003).

    ADS  Google Scholar 

  16. I. I. Balega, Y. Y. Balega, K.-H. Hofmann, et al., Astronom. and Astrophys. 385, 87 (2002).

    Article  ADS  Google Scholar 

  17. A. W. Lohmann, G. Weigelt, and B. Wirnitzer, Appl. Opt. 22, 4028 (1983).

    Article  ADS  Google Scholar 

  18. G. Weigelt, Opt. Commun. 21, 55 (1977).

    Article  ADS  Google Scholar 

  19. P. Baize, Astronom. and Astrophys. Suppl. Ser. 44, 199 (1981).

    ADS  Google Scholar 

  20. M. A. C. Perryman, ESA, The Hipparcos and Tycho Catalogues (ESA Publ. Division, SP-1200, 1997).

  21. Yu. Yu. Balega, A. A. Tokovinin, E. A. Pluzhnik, and G. Weigelt, Astronomy Letters 28, 773 (2002).

    Article  ADS  Google Scholar 

  22. N. I. Shatskii and A. A. Tokovinin, Astronomy Letters 24, 673 (1998).

    ADS  Google Scholar 

  23. S. Soderhjelm, Astronom. and Astrophys. 341, 121 (1999).

    ADS  Google Scholar 

  24. K. G. Strassmeier, A. Washuettl, T. Granzer, et al., Astronom. and Astrophys. Suppl. Ser. 142, 275 (2000).

    Article  ADS  Google Scholar 

  25. R. O. Gray, C. J. Corbally, R. F. Garrison, et al., Astronom. J. 126, 2048 (2003).

    Article  ADS  Google Scholar 

  26. W. D. Heintz, Astronom. and Astrophys. Suppl. Ser. 56, 5 (1984).

    ADS  Google Scholar 

  27. D. G. Monet, Astrophys. J. 234, 275 (1979).

    Article  ADS  Google Scholar 

  28. T. Forveille, J.-L. Beuzit, X. Delfosse, et al., Astronom. and Astrophys. 351, 619 (1999).

    ADS  Google Scholar 

  29. B. D. Mason, G. L. Wycoff, and W. I. Hartkopf, http://ad.usno.navy.mil/wds.

  30. T. J. Henry and D. W. McCarthy, Astronom. J. 106, 773 (1993).

    Article  ADS  Google Scholar 

  31. K. R. Lang, Astrophysical Data: Planets and Stars (Springer-Verlag, New York, 1992).

    Google Scholar 

  32. A. Tokovinin, in Rev. Mex. Astron. Astrof. Conf. Ser., Ed. by C. Allen and C. Scarfe (Instituto de Astronomia, UNAM, Mexico, 2004), Vol. 21, pp. 7–14.

    Google Scholar 

  33. Y. Kozai, Astronom. J. 67, 591 (1962).

    Article  ADS  MathSciNet  Google Scholar 

  34. I. I. Balega, Y. Y. Balega, A. F. Maksimov, et al., Astronom. and Astrophys. 422, 627 (2004).

    Article  ADS  Google Scholar 

  35. I. I. Balega, Y. Y. Balega, A. F. Maksimov, et al., Bull. Spec. Astrophys. Obs. 59, 20 (2006).

    ADS  Google Scholar 

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Authors and Affiliations

  1. Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, 369167, Russia

    E. V. Malogolovets, Yu. Yu. Balega & D. A. Rastegaev

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  1. E. V. Malogolovets
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  2. Yu. Yu. Balega
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  3. D. A. Rastegaev
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Original Russian Text © E.V. Malogolovets, Yu.Yu. Balega, D.A. Rastegaev, 2007, published in Astrofizicheskij Byulleten, 2007, Vol. 62, No. 2, pp. 124–130.

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Malogolovets, E.V., Balega, Y.Y. & Rastegaev, D.A. Nearby low-mass triple system GJ 795. Astrophys. Bull. 62, 111–116 (2007). https://doi.org/10.1134/S1990341307020022

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