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Astrophysics

, Volume 60, Issue 3, pp 325–332 | Cite as

Mg/Si Mineralogical Ratio of Low-Mass Planet Hosts. Correction for the NLTE Effects

  • V. Adibekyan
  • H. M. Gonçalves da Silva
  • S. G. Sousa
  • N. C. Santos
  • E. Delgado Mena
  • A. A. Hakobyan
Article

Mg/Si and Fe/Si ratios are important parameters that control the composition of rocky planets. In this work we applied non-LTE correction to the Mg and Si abundances of stars with and without planets to confirm/reject our previous findings that [Mg/Si] atmospheric abundance is systematically higher for Super-Earth/Neptune-mass planet hosts than stars without planets. Our results show that the small differences of stellar parameters observed in these two groups of stars are not responsible for the already reported difference in the [Mg/Si] ratio. Thus, the high [Mg/Si] ratio of Neptunian hosts is probably related to the formation efficiency of these planets in such environments.

Keywords

planetary systems: abundances: metallicity: Galaxy 

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References

  1. 1.
    G. Gonzalez, Mon. Not. Roy. Astron. Soc., 285, 403, 1997.ADSCrossRefGoogle Scholar
  2. 2.
    N. C. Santos, G. Israelian, and M. Mayor, Astron. Astrophys., 363, 228, 2000.ADSGoogle Scholar
  3. 3.
    D. A. Fischer and J. Valenti, Astrophys. J., 622, 1102, 2005.ADSCrossRefGoogle Scholar
  4. 4.
    A. Mortier, N. C. Santos, S.Sousa et al., Astron. Astrophys., 551, A112, 2013.CrossRefGoogle Scholar
  5. 5.
    S. G. Sousa, N. C. Santos, G. Israelian et al., Astron. Astrophys., 533, A141, 2011.ADSCrossRefGoogle Scholar
  6. 6.
    L. A. Buchhave, D. W. Latham, A. Johansen et al., Nature, 486, 375, 2012.ADSGoogle Scholar
  7. 7.
    L. A. Buchhave, D. W. Latham, Astrophys. J., 808, 187, 2015.ADSCrossRefGoogle Scholar
  8. 8.
    C. Mordasini, Y. Alibert, W. Benz et al., Astron. Astrophys., 541, A97, 2012,.ADSCrossRefGoogle Scholar
  9. 9.
    S. Ida, D. N. C. Lin, Astrophys. J., 616, 567, 2004.ADSCrossRefGoogle Scholar
  10. 10.
    S. Nayakshin, PASA accepted, arXiv:1609.07503, 2016a.Google Scholar
  11. 11.
    G. D. Mulders, I. Pascucci, D. Apai et al., Astron. J., accepted, arXiv:1609.05898, 2016.Google Scholar
  12. 12.
    B. Courcol, F. Bouchy, M. Deleuil, Mon. Not. Roy. Astron. Soc., 461, 1841, 2016.ADSCrossRefGoogle Scholar
  13. 13.
    R. I. Dawson and R. A. Murray-Clay, Astrophys. J., 767, L24, 2013.ADSCrossRefGoogle Scholar
  14. 14.
    C. Beaugé and D. Nesvorný, Astrophys. J., 763, 12, 2013.ADSCrossRefGoogle Scholar
  15. 15.
    V. Z. Adibekyan, P. Figueira, N. C. Santos et al., Astron. Astrophys., 560, A51, 2013.CrossRefGoogle Scholar
  16. 16.
    V. Adibekyan, P. Figueira, and N. C. Santos, Origins of Life and Evolution of Biospheres, 2016.Google Scholar
  17. 17.
    G. Gonzalez, C. Laws, S. Tyagi et al., Astron. J., 121, 432, 2001.ADSCrossRefGoogle Scholar
  18. 18.
    S. E. Robinson, G. Laughlin, P. Bodenheimer et al., Astrophys. J., 643, 484, 2006.ADSCrossRefGoogle Scholar
  19. 19.
    W. Kang, S. G. Lee, and K. M. Kim, Astrophys. J., 736, 87, 2011.ADSCrossRefGoogle Scholar
  20. 20.
    Y. Takeda, Publ. Astron. Soc. J., 59, 335, 2007.ADSCrossRefGoogle Scholar
  21. 21.
    E. D. Mena, G. Israelian, J. I. G.Hernández et al., Astrophys. J., 725, 2349, 2010.ADSCrossRefGoogle Scholar
  22. 22.
    J. I. G. Hernández, G. Israelian, N. C. Santos et al., Astrophys. J., 720, 1592, 2010.ADSCrossRefGoogle Scholar
  23. 23.
    V. Neves, N. C. Santos, S. G. Sousa et al., Astron. Astrophys., 497, 563, 2009.ADSCrossRefGoogle Scholar
  24. 24.
    V. Z. Adibekyan, S. G. Sousa, N. C. Santos et al., Astron. Astrophys., 545, A32, 2012a.CrossRefGoogle Scholar
  25. 25.
    M. Haywood, Astron. Astrophys., 482, 673, 2008.ADSCrossRefGoogle Scholar
  26. 26.
    M. Haywood, Astrophys. J., 698, L1, 2009.ADSCrossRefGoogle Scholar
  27. 27.
    V. Z. Adibekyan, N. C. Santos, S. G. Sousa et al., Astron. Astrophys., 543, A89, 2012c.CrossRefGoogle Scholar
  28. 28.
    V. Z. Adibekyan, E. D. Mena, S. G. Sousa et al., Astron. Astrophys., 547, A36, 2012b.CrossRefGoogle Scholar
  29. 29.
    O. Grasset, J. Schneider, adn C. Sotin, Astrophys. J., 693, 722, 2009.ADSCrossRefGoogle Scholar
  30. 30.
    J. C. Bond, D. P. O'Brien, and D. S. Lauretta, Astrophys. J., 715, 1050, 2010.ADSCrossRefGoogle Scholar
  31. 31.
    A. Thiabaud, U. Marboeuf, Y. Alibert et al., Astron. Astrophys., 562, A27, 2014.ADSCrossRefGoogle Scholar
  32. 32.
    C. Dorn, A. Khan, K. Heng et al., Astron. Astrophys., 577, A83, 2015.CrossRefGoogle Scholar
  33. 33.
    N. C. Santos, V. Adibekyan, C. Mordasini et al., Astron. Astrophys., 580, L13, 2015.ADSCrossRefGoogle Scholar
  34. 34.
    V. Adibekyan, N. C. Santos, P. Figueira et al., Astron. Astrophys., 581, L2, 2015.ADSCrossRefGoogle Scholar
  35. 35.
    M.Bergemann, R. -P. Kudritzki, M. Würl et al., Astrophys. J., 764, 115, 2013.ADSCrossRefGoogle Scholar
  36. 36.
    M. Bergemann, R. -P. Kudritzki, Z. Gazak et al., Astrophys. J., 804, 113, 2015.ADSCrossRefGoogle Scholar
  37. 37.
    M. Tsantaki, S. G. Sousa, V. Z. Adibekyan et al., Astron. Astrophys., 555, A150, 2013.CrossRefGoogle Scholar
  38. 38.
    G. Zhao and T. Gehren, Astron. Astrophys., 362, 1077, 2000.ADSGoogle Scholar
  39. 39.
    J. R. Shi, T. Gehren, and G. Zhao, Astron. Astrophys., 534, A103, 2011.ADSCrossRefGoogle Scholar
  40. 40.
    T. Merle, F. Thévenin, B. Pichon et al., Mon. Not. Roy. Astron. Soc., 418, 863, 2011.ADSCrossRefGoogle Scholar
  41. 41.
    A. V. Sukhorukov and N. G. Shchukina, Kinematics and Physics of Celestial Bodies, 28, 169, 2012.ADSCrossRefGoogle Scholar
  42. 42.
    Y. Osorio and P. S. Barklem, Astron. Astrophys., 586, A120, 2016.ADSCrossRefGoogle Scholar
  43. 43.
    Y. Osorio, P. S. Barklem, K. Lind et al., Astron. Astrophys., 579, A53, 2015.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • V. Adibekyan
    • 1
  • H. M. Gonçalves da Silva
    • 2
  • S. G. Sousa
    • 1
  • N. C. Santos
    • 1
    • 2
  • E. Delgado Mena
    • 1
  • A. A. Hakobyan
    • 3
  1. 1.Instituto de Astrofísica e Ciências do EspaçoUniversidade do Porto, CAUPRua das EstrelasPortugal
  2. 2.Departamento de Física e Astronomia da Faculdade de Ciências da Universidade do PortoPortoPortugal
  3. 3.Byurakan Astrophysical ObservatoryByurakanArmenia

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