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Constraining the cosmological time variation of the fine - structure constant

The variation of the fine-structure constant α = e 2 / ħc can be probed by comparing the wavelength of atomic transitions from the redshift of quasars in the Universe and laboratory over cosmological time scales t ~ 1010 yr. After a careful selection of pairs of lines, the Thong method with a derived analytical expression for the error analysis was applied to compute the α variation. We report a new constraint on the variation of the fine-structure constant based on the analysis of the CIV, NV, MgII, AlIII, and SiIV doublet absorption lines. The weighted mean value of the variation in α derived from our analysis over the redshift range 0.4939 ≤ z ≤ 3.7 is = ( 0.09 ± 0.07)×10−5. This result is three orders of magnitude better than the results obtained by earlier analysis of the same data on the constraint on Δα/α .

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References

  1. 1.

    P. A. M. Dirac, Nature., 139, 323, 1937.

    MATH  Article  ADS  Google Scholar 

  2. 2.

    E. A. Milne, Proc. R. Soc. London, Ser. A, 158, 324, 1937.

    MATH  Article  ADS  Google Scholar 

  3. 3.

    J. P. Uzan, Rev. Mod. Phys., 75, 403, 2003.

    Article  MathSciNet  ADS  Google Scholar 

  4. 4.

    H. Chand et al., Astron. Astrophys., 47, 430, 2005.

    Google Scholar 

  5. 5.

    Y. Fujii et al., Nucl. Phys. B573, 377, 2000.

    Article  ADS  Google Scholar 

  6. 6.

    R. Srianand et al., Phys. Rev. Lett., 92, 121302, 2004.

    Article  ADS  Google Scholar 

  7. 7.

    J. N. Bahcall and M. Schmitt, Phys. Rev. Lett., 19, 1294, 1976.

    Article  ADS  Google Scholar 

  8. 8.

    J. N. Bahcall, C. L. Steinhardt, and D. Schlegel, Astrophys. J., 600, 520, 2004.

    Article  ADS  Google Scholar 

  9. 9.

    A. M. Wolfe et al., Phys. Rev. Lett., 37, 179, 1976.

    Article  ADS  Google Scholar 

  10. 10.

    S. A. Levshakov, Mon. Not.. Roy. Astron. Soc., 269, 339, 1994.

    ADS  Google Scholar 

  11. 11.

    A. Y. Potekhin and D. A. Varshalovich, Astron. Astrophys. Suppl. Ser., 104, 89, 1994.

    ADS  Google Scholar 

  12. 12.

    L. L. Cowie and A. Songaila, Astrophys. J., 453, 596, 1995.

    Article  ADS  Google Scholar 

  13. 13.

    A. V. Ivanchik, A. Y. Potekhin, and D. A. Varshalovich, Astron. Astrophys., 343, 439, 1999.

    ADS  Google Scholar 

  14. 14.

    D. A. Varshalovich and A. Y. Potekhin, Astron. Lett., 20, 6; Astron. Astrophys. Suppl. Ser., 104, 89, 1994.

    Google Scholar 

  15. 15.

    D. A. Varshalovich, V. E. Panchuk, and A. V. Ivanchik, Astron. Lett., 22, 6, 1996.

    ADS  Google Scholar 

  16. 16.

    L. D. Thong, M. N. Giao, N. T. Hung, and T. V. Hung, Europhys. Lett., 87, 69002, 2009.

    Article  ADS  Google Scholar 

  17. 17.

    M. T. Murphy et al., Mon. Not. Roy. Astron. Soc., 327, 1237, 2001.

    Article  ADS  Google Scholar 

  18. 18.

    M. T. Murphy et al., Mon. Not. Roy. Astron. Soc., 345, 609, 2003.

    Article  ADS  Google Scholar 

  19. 19.

    V. A. Dzuba et al., Phys. Rev. Lett., 82, 888, 1999.

    Article  ADS  Google Scholar 

  20. 20.

    J. K. Webb et al., Phys. Rev. Lett., 87, 091301, 2001.

    Article  ADS  Google Scholar 

  21. 21.

    P. Petitjean, M. Rauch, and R. F. Carswell, Astron. Astrophys., 291, 29, 1994.

    ADS  Google Scholar 

  22. 22.

    A. P. Striganov and G. A. Odintsova, Tables of spectral lines of atoms and ions, 1982.

  23. 23.

    A. F. Martinez, G. Vladilo, and P. Bonifacio, Mem. Soc. Astron. Ital. Suppl., 3, 252, 2003.

    ADS  Google Scholar 

  24. 24.

    S. A. Levshakov, I. I. Agafonova, P. Molaro, and D. Reimers, Mem. Soc. Astron. Ital. Suppl., 1, 2008.

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Correspondence to Le Duc Thong.

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Published in Astrofizika, Vol. 53, No. 3, pp. 493–500 (August 2010).

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Duc Thong, L., van Hung, T., Thi Thu Huong, N. et al. Constraining the cosmological time variation of the fine - structure constant. Astrophysics 53, 446–452 (2010). https://doi.org/10.1007/s10511-010-9135-8

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Keywords

  • Cosmology
  • observations - line
  • profiles - quasars
  • absorption lines