Astronomy Letters

, Volume 36, Issue 3, pp 220–226 | Cite as

Searching for stars closely encountering with the solar system

Article

Abstract

Based on a new version of the Hipparcos catalog and currently available radial velocity data, we have searched for stars that either have encountered or will encounter the solar neighborhood within less than 3 pc in the time interval from −2 Myr to +2 Myr. Nine new candidates within 30 pc of the Sun have been found. To construct the stellar orbits relative to the solar orbit, we have used the epicyclic approximation. We show that, given the errors in the observational data, the probability that the well-known star HIP 89 825 (GL 710) encountering with the Sun most closely falls into the Oort cloud is 0.86 in the time interval 1.45 ± 0.06 Myr. This star also has a nonzero probability, 1 × 10−4, of falling into the region d < 1000 AU, where its influence on Kuiper Belt objects becomes possible.

Key words

kinematics stars Oort cloud Kuiper Belt Solar system Galaxy (Milky Way) 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. A. Aannestad, S. J. Kenyon, G. L. Hammon, et al., Astron. J. 105, 1033 (1993).CrossRefADSGoogle Scholar
  2. 2.
    J. Anosova, V. V. Orlov, and N. A. Pavlova, Astron. Astrophys. 292, 115 (1994).ADSGoogle Scholar
  3. 3.
    V. V. Bobylev, A. T. Bajkova, and A. S. Stepanishchev, Pis’ma Astron. Zh. 34, 570 (2008) [Astron. Lett. 34, 515 (2008)].Google Scholar
  4. 4.
    V. V. Bobylev, G. A. Gontcharov, and A. T. Baikova, Astron. Zh. 83, 821 (2006) [Astron. Rep. 50, 733 (2006)].Google Scholar
  5. 5.
    W. Dehnen and J. J. Binney, Mon. Not. R. Astron. Soc. 298, 387 (1998).CrossRefADSGoogle Scholar
  6. 6.
    B. Fuchs, D. Breitschwerdt, M. A. Avilez, et al., Mon. Not. R. Astron. Soc. 373, 993 (2006).CrossRefADSGoogle Scholar
  7. 7.
    J. Garcia-Sánchez, R. A. Preston, D. L. Jones, et al., Astron. J. 117, 1042 (1999).CrossRefADSGoogle Scholar
  8. 8.
    J. Garcia-Sánchez, P. R. Weissman, R. A. Preston, et al., Astron. Astrophys. 379, 634 (2001).CrossRefADSGoogle Scholar
  9. 9.
    M. S. Giampapa, R. Rosner, V. Kashyap, et al., Astrophys. J. 463, 707 (1996).CrossRefADSGoogle Scholar
  10. 10.
    G. A. Gontcharov, Pis’ma Astron. Zh. 32, 844 (2006) [Astron. Lett. 32, 759 (2006)].Google Scholar
  11. 11.
    J. L. Greenstein and V. L. Trimble, Astrophys. J. 149, 283 (1967).CrossRefADSGoogle Scholar
  12. 12.
    J. G. Hills, Astron. J. 86, 1730 (1981).CrossRefADSGoogle Scholar
  13. 13.
    The Hipparcos and Tycho Catalogues, ESA SP-1200 (1997).Google Scholar
  14. 14.
    J. Holmberg and C. Flinn, Mon. Not. R. Astron. Soc. 352, 440 (2004).CrossRefADSGoogle Scholar
  15. 15.
    J. Holmberg, B. Nordström, and J. Andersen, Astron. Astrophys. 475, 519 (2007).CrossRefADSGoogle Scholar
  16. 16.
    Y. C. Joshi, Mon. Not. R. Astron. Soc. 378, 768 (2007).CrossRefADSGoogle Scholar
  17. 17.
    S. J. Kenyon and B. Bromley, Nature 432, 598 (2004).CrossRefADSGoogle Scholar
  18. 18.
    N. V. Kharchenko, R.-D. Scholz, A. E. Piskunov, et al., Astron. Nachr. 328, (2007).Google Scholar
  19. 19.
    F. van Leeuwen, Astron. Astrophys. 474, 653 (2007).CrossRefADSGoogle Scholar
  20. 20.
    B. Lindblad, Arkiv Mat., Astron., Fysik A 20,(17), (1927).Google Scholar
  21. 21.
    R. A. J. Matthews, R. Astron. Soc. Quart. J. 35, 1 (1994).ADSGoogle Scholar
  22. 22.
    A. A. Mülläri and V. V. Orlov, Earth, Moon, and Planets (Kluwer Netherlands, 1996), Vol. 72, p. 19.CrossRefADSGoogle Scholar
  23. 23.
    B. Nordström, M. Mayor, J. Andersen, et al., Astron. Astrophys. 419, 989 (2004).CrossRefADSGoogle Scholar
  24. 24.
    E. M. Pauli, R. Napiwotzki, U. Heber, et al., Astron. Astrophys. 447, 173 (2006).CrossRefADSGoogle Scholar
  25. 25.
    I. A. Revina, Analysis of the Motion of Celestial Bodies and Estimation of the Accuracy of Their Observations (Latvian Univ., Riga, 1988), p. 121.Google Scholar
  26. 26.
    P. R. Weissman, Earth, Moon, and Planets (Kluwer, Netherlands, 1996), Vol. 72, p. 25.Google Scholar
  27. 27.
    R. E. Wilson, General Catalogue of Stellar Radial Velocities (Carnegie Inst., Washington, DC, 1953), p. 601.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  1. 1.Pulkovo Astronomical ObservatoryRussian Academy of SciencesSt. PetersburgRussia

Personalised recommendations